Question

Qual é a responta disso20+(3

Answer 1

1- a) 7x-y
b) 0
c) -13m
d) -7x

2- a) 20+3x-4
16+3x

b) 8x² -6-5+7x²
15x²-4

c) 10a²+a²+4a-5
15a²-5

d) 5x+7x-12-20-4x
8x-32