Resolva as equações a seguir:
a) 18×-43=65
b)5×-30=0
c)2×+3×=100=
d)23×-16=14-17×
é)x+30=40
f)30-20+2÷x=10
g)10÷×-20=40+50
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A)18x-43=65
18x=65+43
18x=108
x=108/8
x=6
B)5x-30=0
5x=0+30
5x=30
x=30/5
x=6
C)2x+3x=100
5x=100
x=100/5
x=20
D)23x-16=14-17x
23x+17x=14+16
40x=30
X=40/30
x=4/3
E) x+30=40
x=40-30
x=10
18x=65+43
18x=108
x=108/8
x=6
B)5x-30=0
5x=0+30
5x=30
x=30/5
x=6
C)2x+3x=100
5x=100
x=100/5
x=20
D)23x-16=14-17x
23x+17x=14+16
40x=30
X=40/30
x=4/3
E) x+30=40
x=40-30
x=10
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