Question

calcule:
×+5=9
×+12=30
6+×=10
×-4=6
×-132=247
×-4=0
16-×=10​

Answer 1

Olá!

$a) \: x + 5 = 9 \\ x = 9 - 5 \\ \boxed{x = 4}$

$b) \: x + 12 = 30 \\ x = 30 - 12 \\ \boxed{x = 18}$

$c) \: 6 + x = 10 \\ x = 10 - 6 \\ \boxed{x = 4}$

$d) \: x - 4 = 6 \\ x = 6 + 4 \\ \boxed{x = 10}$

$e) \: x - 132 = 247 \\ x = 247 + 132 \\ \boxed{x = 379}$

$f) \: x - 4 = 0 \\ x = 0 + 4 \\ \boxed{x = 4}$

$g) \: 16 - x = 10 \\ - x = 10 - 16 \\ - x = - 6 \: \times ( - 1) \\ \boxed{x = 6}$

Espero ter ajudado! :)