Question

equaçao do primeiro grau A) 5×+3=8×-5
B)×+3=7
C)3×+5=-×-5
D)8×+5+2×=7+8-×
E)9+5=3×-2
F)2×+8=×-1
G)3×+4=2×-×+8​
pra agora por favor

Answer 1

A) 5x+3=8x-5

5x-8x=-5-3

-3x=-8 .(-1)

3x=8

x=8/3

B) x+3=7

x=7-3

x=4

C)3x+5= -x-5

3x+x=-5-5

4x=-10

x=-10/4

x=-2,5

D)8x+5+2x=7+8-x

10x+x=15-5

11x=10

x=10/11

E)9+5=3x-2

-3x=-2-9-5

-3x= -16 .(-1)

3x=16

x=16/3

F)2x+8=x-1

2x-x=-1-8

x=-7

G)3x+4=2x-x+8

3x-2x+x=8-4

2x=4

x=4/2

x=2