Question

1) 10x + 3 – 5x = 18 *
a) 3
b) -3
c) 15
d)-15
2) 44x + 11=33x +33 *
a) 22
b)11
c) 2
d) 10
3) z +2z -10=20 *
a) 10
b)3
c) 30\10
d)-10
4) 9x + 8 = 3x -7 *
a) -1\6
b)-15\6
c)-8\9

Answer 1

Resposta:

Explicação passo a passo:

1) 10x + 3 - 5x = 18

10x - 5x = 18 - 3

5x = 15

x = 15/5 = 3 letra a)

2)