Question

equaçao 1 grau

3.(4x+8)=36

2x-3=33x

2x+18=-5x+8x-18

7-2x=4+x


preciso com os calculos​

Answer 1

3 • (4x + 8) =36

(4x) • 3 + (8) • 3 = 36

12x + 24 = 36

12x = 36 - 24

12x = 12

x = 12 ÷ 12

x = 1

2x + 18 = - 5x + 8x - 18

2x + 5x - 8x = - 18 - 18

- x = -36 .(-1)

x = 36

7 - 2x = 4 + x

- 2x - x = 4 - 7

- 3x = - 3 .(-1)

3x = 3

x = 3 ÷ 3

x = 1