Resolva:
A_5x-7=2x+20
B_7(x-9)=3(x+3)
C_32-x=45-6x
D_3x/2-7=5
E_x/4=12+x
F_12-2(x-5)=72
G_13+x/2=15
H_3x+4-x=2x+20
A_5x-7=2x+20
B_7(x-9)=3(x+3)
C_32-x=45-6x
D_3x/2-7=5
E_x/4=12+x
F_12-2(x-5)=72
G_13+x/2=15
H_3x+4-x=2x+20
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h) 3x + 4 - x = 2x +20
3x - x - 2x = -4 +20
1x = 16
s = {16}