Question

06- Resolva as equações abaixo:

a) 10x + 16 = 14x + 8

b) 2(x-3) = -3(x - 3)

Answer 1

10x+16 =14x+8
10x-14x = 8-16
-4x = -8
4x = 8
x = 8/4
x = 2

2(x-3) = -3(x-3)
2x-6 = -3x+9
2x+3x = 9+6
5x = 15
x = 15/5
x = 3

Answer 2

a) 10x + 16 = 14x + 8 10x - 14x = 8 - 16 -4x = -8 x = -8/-4 x = 2 b) 2x (x - 3) = -3 (x - 3) 2x -6 = -3x + 9 2x + 3x = 9 + 6 5x = 15 x = 15/5 x = 3