Question

presciso da resposta 10=x+8 15=x+20 4=x-10 4=x+8
0=x+12 -3=x+1

Answer 1

a) 10 = x + 8
10 - 8 = x
x = 2
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b) 15 = x + 20
x = 15 - 20
x = -5
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c) 4 = x - 10
x = 4 + 14
x = 14
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d) 4 = x + 8
x = 4 - 8
x = - 4