Question

A) -20+ =37
B)3x-12=15
C)20+2y=y-4
D)20+2y=-4
Me ajuda

Answer 1

Resposta:

B-3x-12=15

$3x = 15 + 12 \\ 3x = 27 \\ x \frac{27}{3} \\ x = 9 \\ \: c = 20 + 2y = y - 4 \\ 2y - y = - 4 - 20 \\ y = 24 \\ \\ d = 20 + 2y = - 4 \\ 2y = - 4 - 20 \\ y = \frac{24}{2} = 12$

Answer 2

Resposta:

A)x=37+20

x=57

B)3x=15+12

x=27÷3

x=9

C)2y-y=-4+20

y=16

D)2y=-4-20

y=-24÷2

y=-12