Question

C) triagulo–85=130 D) y+354=1.000 E)6×n=138 F)z×5=525

Answer 1

Resposta:

c)

$t - 85 = 130 \\ t = 130 + 85 \\ t = 215$

d)

$y + 354 = 1000 \\ y = 1000 - 354 \\ y = 646$

e)

$6 \times n = 138 \\ n = \frac{138}{6} \\ n = 23$

f)

$z \times 5 = 525 \\ z = \frac{525}{5} \\ z = 105$