Question

Encontre o valor de X
A) -3X+9=-X+6

B) 4X-8=-2X+16

C) -X+10=-6X-35

D) 6X-18=3X+12

Answer 1

A) -3X+9=-X+6
9 - 6 = - x + 3x
3 = 2x
x = 2/3

B) 4X-8=-2X+16
4x + 2x = 16 + 8
6x = 24
x = 24/6
x = 4

C) -X+10=-6X-35
-x + 6x = -35 -10
5x = -45
x= -45/5
x = -9

D) 6X-18=3X+12
6x - 3x = 12 + 18
3x = 30
x = 30/3
x = 10

Answer 2

A)
- 3x + 9 = - x + 6
- 3x + x = 6 - 9
- 2x = - 3...(-1)
2x = 3
x = 3
......__
.......2

B)
4x - 8 = - 2x + 16
4x + 2x = 16 + 8
6x = 24
x = 24
.....___
........6

x = 4

C)
- x + 10 = 6x - 35
- x - 6x = - 35 - 10
-7x =45
x = - 45
......____
..........7

x = -9

D)
6x - 18 = 3x + 12
6x - 3x = 12 + 18
3x = 30
x = 30
.....___
.......3

x = 10