4x+5(3+2x)=3
4x-15-10x=3
-6x -15 =3
-6x = 18
x = 3
Did I do this correctly, if i didnt tell me where I made my mistake?
2007-09-21 21:37:31 · 19 answers · asked by cjay_cjay 2 in Science & Mathematics ➔ Mathematics
4x -15 - 10x = 3
-6x - 15 = 3
-6x = 18
-x = 3
x= -3
You got the sign wrong.
2007-09-21 21:40:16 · answer #1 · answered by Meng-Tzu 4 · 1⤊ 4⤋
No
4x-5(3+2x)=3
4x-15-10x=3
-6x-15=3
-6x=18
x=18\-6
x=-3
Be careful Next time! All The Best!!
2007-09-21 21:51:50 · answer #2 · answered by Kavitha 2 · 0⤊ 0⤋
hey check our question, the heading states
the equation is 4x-5(3+2x)=3. But later on you
write the equation as 4x+5(3+2x)=3.(notice the + sign)
if the heading is right than your answer is still wrong the
correct answer is as follows:
4x-5(3+2x)=3
4x-15-10x=3
4x-10x=3+15
-6x=18
x=18/-6
x= -3 (minus 3)
if the equation is 4x+5(3+2x)=3 than
4x+5(3+2x)=3
4x+15+10x=3
4x+10x=3-15
14x= -12
x= -12/14
x= -6/7
2007-09-21 21:53:20 · answer #3 · answered by Anonymous · 0⤊ 0⤋
4x – 5 (3 + 2x) = 3
4x -15 -10x = 3
-6x = 18
x = -3
4x + 5 (3 + 2x) = 3
4x +15 + 10x = 3
14x = -12
x = -12/14 or -6/7
Have you written the equation correctly? Your header equation is different from the one stated at the beginning of entry.
2007-09-21 21:43:03 · answer #4 · answered by Cider Sid 1 · 1⤊ 0⤋
sign is wrong~
4x+5(3+2x)=3
4x-15-10x=3
-6x -15 =3
-6x = 18
x = -3
2007-09-21 23:15:54 · answer #5 · answered by Anonymous · 1⤊ 0⤋
4x-5(3+2x)=3
4x-15-10x=3
-6x=3+15
-6x=18
x=18/-6= -3 (you have done a mistake here.Instead of -3 you have written 3)
2007-09-21 22:07:54 · answer #6 · answered by alpha 7 · 1⤊ 0⤋
4x - 5(3 + 2x) = 3
4x - 15 - 10x = 3
- 6x = 18
x = - 3
Answer: x = - 3
Proof:
4(- 3) - 5(3 + 2[- 3]) = 3
- 12 - 5(3 - 6) = 3
- 12 - 5(- 3) = 3
- 12 + 15 = 3
3 = 3
2007-09-21 21:47:31 · answer #7 · answered by Jun Agruda 7 · 3⤊ 0⤋
you got the header qn and the next step have a different sign. it should be:
4x-5(3+2x)=3
4x-15-10x=3
-6x=15+3
6x= -18
x= -3
2007-09-21 23:29:08 · answer #8 · answered by Clara 2 · 1⤊ 0⤋
4x-5(3+2x)=3
4x-15-10x=3
-6x=18
x= -3
2007-09-21 22:30:45 · answer #9 · answered by maryam s 1 · 1⤊ 0⤋
4x-5(3+2x) =3
4x-15-10x =3
4x-10x=3+15
-6x= - 18
6x=18
x=3.
2007-09-21 21:56:52 · answer #10 · answered by J.SWAMY I ఇ జ స్వామి 7 · 0⤊ 0⤋
You have made a sign mistake. When -6x= 18, -x will=3 or x will = -3
2007-09-21 21:47:23 · answer #11 · answered by bashah1939 4 · 1⤊ 0⤋