Question

A) ×+10=7

B) ×+6=-5

C) ×+5=11

Answer 1

Resposta:

A) ×+10=7

$x + 10 = 7 \\ x = 7 - 10 \\ x = - 3$

B) ×+6=-5

$x + 6 = - 5 \\ x = - 5 - 6 \\ x = - 11$

C) ×+5=11

$x + 5 = 11 \\ x = 11 - 5 \\ x = 6$