Question

A)x-3=9 b)4×-9=1-2× c)x+5=20-4× d)9×-4×+10=7×-30
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Answer 1

Resposta:

Explicação passo a passo:

A)x-3=9

X =9 +3

X= 12

b)4×-9=1-2×

4x +2x = 1 +9

6x = 10

X = 10/6 = 5/3

c)x+5=20-4×

X +4x = 20 -5

5x = 15

X = 15/5

X = 3

d)9×-4×+10=7×-30

5x +10 = 7x -30

5x -7x = -30-10

-2x = -40

X = 20