Question

×+5-8=15 ×+4-6= -12 ×-12+7=18+40

Answer 1

Resposta:

X+5-8= 15 → 12

X+4-6=-12 → 10

X-12+7=18+40 → 63

Explicação passo-a-passo:

X+5-8=15

15+5-8=x

X=12

X+4-6=-12

4-6+12=x

X=10

X-12+7=18+40

X=18+40+12-7

X=63