Question

Resolva as equaçoes:
a: 4x + (7x+11)=-11
b: 5x-(-x+22) =-4
c: 11x+(-3x+10)=4x+2
d:11x-(-3x+10)=4x+2 AJUDEEEMMM

Answer 1

a:
4x + (7x+11)=-11
4x + 7x + 11 = - 11
11x = - 11 - 11
11x = - 22 
x = - 22/11
x = - 2
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b:
5x - (- x + 22) = - 4
5x + x - 22 = - 4
6x = - 4 + 22
6x = 18
x = 18/6
x = 3
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c:
11x+(-3x+10)=4x+2
11x - 3x + 10 = 4x + 2
8x + 10 = 4x + 2
8x - 4x = 2 - 10
4x = - 8
x = - 8/4
x = - 2
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d:
11x - ( - 3x + 10) = 4x + 2
11x + 3x - 10 = 4x + 2
14x - 10 = 4x + 2
14x - 4x = 2 + 10
10x = 12 (:2)
5x = 6
x = 6/5