Do the equation
2007-03-29 16:22:28 · 14 answers · asked by Jake 2 in Science & Mathematics ➔ Mathematics
Subtract 21 from each side, than divide each side by 5 to isolate x. That will give you your answer. I'll let you actually do the steps yourself.
2007-03-29 16:25:24 · answer #1 · answered by Wanderer 4 · 1⤊ 0⤋
5x+21=245
5x=245-21 = 224
x= 224/5
2007-03-29 23:25:53 · answer #2 · answered by Anonymous · 0⤊ 0⤋
5x+21=245
-21 -21
5x=224
divide both sides by 5
x=44.8 or 224/5
2007-03-29 23:33:50 · answer #3 · answered by Justina 3 · 0⤊ 0⤋
Heya,
5x + 21 = 245
5x = 245 - 21
5x = 224
x = 224/5
x = 44.8
Check your answer by substituting x with 44.8 in your original equation.
5x + 21
= 5(44.8) + 21
= 224 + 21
= 245 (same as answer given)
Hope this helps! :)
2007-03-29 23:29:44 · answer #4 · answered by shopaholicstace 2 · 0⤊ 0⤋
5x+21=245
5x+21-21=245-21
5x=224
5x/5=224/5
x=44 4/5
2007-03-30 01:21:04 · answer #5 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
X - -5x+21=245
First x- -5x means just 6x (anytime you have "minus negative" it means just add that number (positive)
so: 6x+21=245 (get rid of the 21 so you can get x alone)
-21 -21
________________
6x=224 (get rid of 6 so you can get x alone/divide by 6)
___ ____
6 6 (224 divided by 6)
x= 37.3333333333333333333333
2007-03-29 23:33:27 · answer #6 · answered by natsuko1 3 · 0⤊ 0⤋
5x+21= 245
subtract 21 for both sides
5x = 224
divide both sides by 5
x = 44.8
2007-03-29 23:26:04 · answer #7 · answered by 7 · 0⤊ 0⤋
5x+21=245
subtract 21 from each side
5x+224
divide each side by 5
x=44.8
2007-03-29 23:27:14 · answer #8 · answered by L_Bizzy25 2 · 1⤊ 0⤋
5x=245-21
5x=224
x=224/5
x=44.8
2007-03-29 23:27:28 · answer #9 · answered by djin 2 · 0⤊ 0⤋
44
2007-03-29 23:26:48 · answer #10 · answered by EdwinRool'd 3 · 0⤊ 0⤋
5x=245-21
5x=224
x=224/5
x=44.8
hope this helps!
2007-03-29 23:26:44 · answer #11 · answered by Angelica C 2 · 1⤊ 0⤋