Question

plisss me ajudem a fazer esssa questões a) x+5=12 b) x-12=8
C)3x= - 15 d) 4x=10

Answer 1

a-) x + 5 = 12 => x = 12 - 5 => x = 7
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b-) x - 12 = 8 => x = 8 + 12 => x = 20
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c-) 3x = - 15 => x = - 15/3 => x = - 5
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d-) 4x = 10 => x = 10/4 => x = 5/2

Answer 2

a) x+5=12 ==> x = 12-5==> x = 7

b) x-12=8 ==> x = 12+8 ==> x = 20
C)3x= - 15 ==> x = - 5

d) 4x=10 ==> x = 10/4 ou x = 5/2