Question

Resolva as equações do 1° grau
B) 2×-5=×+1? C) 2×+3=×+4? D) 5×+7=4×+10? E) 4×-10=2×+2? F) 4×-7=8×-2? Por favor, me ajudem

Answer 1

B)2x-x=+5+1
1x=6
X=6
C)2x-x=-3+4
1x=-1
X=1
D)5x-4x=-7+10
1x=3
X=3
E)4x-2x=+20+2
2x=22
X=22/2
X=11
F)4x-8x=+7-2
4x=5
X=5/4

Answer 2

B) 2x-5=x+1
2x=x+1+5
2x-x=1+5
x=6

C)2x+3=x+4
2x=x+4-3
2x-x=4-3
x=1

D)5x+7=4x+10
5x=4x=10-7
5x-4x=10-7
x=3

E)4x-10=2x+2
4x=2x+2+10
4x-2x=2+10
2x=12
x=12/2
x=6

F)4x-7=8x-2
4x=8x-2+7
4x-8x=-2+7
-4x=5
x=5/4
x=1,25