Resolva as equações de 1º grau abaixo:
A)2(m+4)+8=3+M
B)5x+14+2x=2x+108-x
c)14x+10x=25+5
D)15x+30x-20=10x
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A ) 2 (m+4)+8=3+M
2m+8+8=3+m
2m+16=3+m
2m=3+m-16
2m-m=3-16
m=-13
B)5x+14+2x=2x+108-x
5x+2x=2x+108-x-14
5x+2x-2x+x=108-14
6x=94
x=94/6
x= 16
C)14x+10x=25+5
24x=30
x=30/24
x=1,25
D)15x+30x-20=10x
15x+30x=10x+20
15x+30x-10x=20
35x=20
x=20/35
x=0,6
2m+8+8=3+m
2m+16=3+m
2m=3+m-16
2m-m=3-16
m=-13
B)5x+14+2x=2x+108-x
5x+2x=2x+108-x-14
5x+2x-2x+x=108-14
6x=94
x=94/6
x= 16
C)14x+10x=25+5
24x=30
x=30/24
x=1,25
D)15x+30x-20=10x
15x+30x=10x+20
15x+30x-10x=20
35x=20
x=20/35
x=0,6
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