Question

b) 3x + 15 = 42
c) 4x + 6 = 22​

Answer 1

Resposta:

b) x = 9

c) x = 4

Explicação passo-a-passo:

Answer 2

b)
3x + 15 = 42
3x = 42 - 15
3x = 27
x = 27/3

x = 9
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c)
4x + 6 = 22
4x = 22 - 6
4x = 16
x = 16/4

x = 4