Please help to solve?

0 ⤊

Please help to solve?

Solve.3x – 7 = 2x + 8

2007-02-20 17:39:41 · 4 answers · asked by nazerbean1 1 in Science & Mathematics ➔ Mathematics

4 answers

3x – 7 = 2x + 8
subtract 2x from both sides
3x – 7-2x = 2x + 8-2x
3x-2x-7=2x-2x+8
x-7=8
add 7 to both sides
x-7+7=8+7
x=15

2007-02-20 17:44:07 · answer #1 · answered by iyiogrenci 6 · 0⤊ 0⤋

The goal here is to get all off the x's on one side of the = sign

3x - 7 = 2x + 8

add 7 to both sides

3x = 2x +15

subtract 2x from both sides

x = 15

Good luck!

2007-02-21 01:45:00 · answer #2 · answered by Anthony A 3 · 0⤊ 0⤋

3x - 7 = 2x + 8
3x - 2x = 8 +7
x = 15

2007-02-21 01:43:56 · answer #3 · answered by sirius 2 · 0⤊ 0⤋

3x-7=2x+8
3x-2x=8+7
x=15

2007-02-21 01:44:31 · answer #4 · answered by Christopher S 1 · 0⤊ 0⤋