12x+1+12-10x=18?

12x + 1 + 12 - 10x = 18
12x + 13 - 10x = 18
2x + 13 = 18
2x = 5
x = 2.5

2006-10-07 08:56:27 · answer #1 · answered by Jjq 2 · 0⤊ 0⤋

12x+1+12-10x=18
12x-10x=18-13
2x=5
x=5/2

2006-10-07 08:57:35 · answer #2 · answered by flori 4 · 0⤊ 0⤋

12x + 1 + 12 - 10x = 18
1) combine like terms
2x + 13 = 18
2) subtract 13 from each side
2x = 5
3) divide 2 from each side to get x by itself
x = 5/2 or 2.5

2006-10-07 09:06:13 · answer #3 · answered by Anonymous · 0⤊ 0⤋

12x+1+12-10x=18
(12x-10x)+(1+12)=18 you group
2x+13=18 solve in the parentesis
2x=5 subtract 13 from either side
x=5/2 divide either side by two

2006-10-07 09:03:26 · answer #4 · answered by Anonymous · 0⤊ 0⤋

In order to get the answer of 18 you have to assume that x is 2.5:

((12 * 2.5) + 1) + (12 - (10 * 2.5))

31 - 13 = 18

2006-10-07 09:04:53 · answer #5 · answered by Rainbow 2 · 0⤊ 0⤋

Combine like terms: 2x + 13 = 18.
Subtract 13 from both sides 2x = 5.
Divide by 2 x = 5/2.

2006-10-07 08:57:01 · answer #6 · answered by steiner1745 7 · 0⤊ 0⤋

12x+1+12-10x=18
2x+13=18
2x=18-13
2x=5
x=2.5

2006-10-07 09:03:36 · answer #7 · answered by Anonymous · 0⤊ 0⤋

First, enable's think of bearing directly to the equivalent sign as a bridge. The numbers and values on the two area opt to be with the numbers and values that are equivalent to them. consequently, you may placed them mutually. Ex: 6x - 4x + 2 = 10 Now, for this one, the two numbers with x's linked to them are already on the comparable area. That makes issues extra handy. in spite of the shown fact that, the two (a variety without letter linked to it) is on the different area of the bridge from the ten (additionally a variety without letter linked to it). for that reason, you may help the lonely numbers be mutually! enable's pass 2 to the different area. yet, oh no! The bridge is so shaky and horribly made that the two is scared! by surprise, the two's sign differences O.O consequently: 2 has now replace into -2 after it crosses the bridge! for that reason, the equation now will become: 6x - 4x = 10 - 2 yet wait! you're no longer performed yet! The numbers and values are so happy to have one yet another next to them (and no different distinctive variety or value with them) that they % to get married! Congratulations! finished the equation on the two area to simplify (marry) the words. 6x - 4x = 2x 10 - 2 = 8 Equals: 2x = 8 yet what's that? The x is getting jealous! It needs to alter right into a variety too! curiously, numbers do no longer opt to be letters. they opt to renowned who they're! We could help! 2x = 8 What does 2 multiply with to equivalent 8? to locate this out, we can divide 8 with the aid of 2! (hint: with the aid of the way, you may in basic terms initiate multiplying and dividing while there is not any different option to characteristic and subtract like words. be sure you simplify as much as you may!) 8/2 = 4 consequently: x = 4 Yay! We found x's id (That replace into the genuine objective o.O). Now, enable's do yet another one without the stupid tale I made up. Ex: 4 + 10x = 18 + 17x Get the numbers that are the comparable on one area. (P.S. those values do no longer opt to share aspects. they desire their very own "abode") 10x - 17x = 18 - 4 (remember, the indicators of the numbers crossing the bridge replace through fact the bridge is so shaky and frightening) -7x = 14 (They have been given married! Congratulations!) very final Ans: x = -2 (x now is conscious who that's! do no longer forget the damaging sign while dividing a favorable with a damaging)

2016-12-08 10:14:34 · answer #8 · answered by keetan 4 · 0⤊ 0⤋

2x + 13 = 18
2x =18 - 13
= 6
x = 6/2
= 3

2006-10-07 08:56:51 · answer #9 · answered by Anonymous · 0⤊ 0⤋

12x-10x+1+12=18

2x+13=18

2x=18-13

2x=5

x=5/2

x=2.5

enough?

2006-10-07 08:58:38 · answer #10 · answered by Salva 2 · 1⤊ 0⤋

12 answers