Question

q) 3(x + 2) - 1 = 2(x + 3) - 7
t)3x + 5 + 2x + 6= x + 27
w) 5 (2x - 1) = 3 (x + 10)​

Answer 1

Resposta:

q) 3(x + 2) - 1 = 2(x + 3) - 7

3x +6 -1 = 2x + 6 - 7

3x +5 = 2x -5

3x - 2x = -5 - 5

X = -10

t)3x + 5 + 2x + 6= x + 27

5x + 11 = x - 27

5x - x = -27 -11

4x = -38

x = -38/4

x = 19/2

w) 5 (2x - 1) = 3 (x + 10)

10x - 5 = 3x + 30

10x - 3x = + 30 + 5

7x = 35

x = 35/7

x = 5