Question

5) calcule
A)7x+2x=
B)-3x-4x=
C)7x-5+2x+10=
D)5x+2+5x-2=

Answer 1

Resposta:

Explicação passo-a-passo:

A) 7x + 2x

= (7 + 2)x

= 5x ✓

B) -3x - 4x

= -(3 + 4)x

= -7x ✓

C) 7x - 5 + 2x + 10

= 7x - 2x - 5 + 10

= 5x - 5 ✓

D) 5x + 2 + 5x - 2

= 5x + 5x + 2 - 2

= 10x ✓