Resolva as equações de primeiro grau com incognita ;
A)3x100=2x+100+200
B)y+500+250=4y
C)3b+500=1000+500+b+100
D)2c+500=x+b+x
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B) y+500+250=4y
4y-y=750
3y=750
y=750/3
y=250
C) 3b+500=1000+500+b+100
3b-b=1000+500+100-500
2b=1100
b=1100/2
b=550
4y-y=750
3y=750
y=750/3
y=250
C) 3b+500=1000+500+b+100
3b-b=1000+500+100-500
2b=1100
b=1100/2
b=550
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