Question

EQUAÇÃO DE 1° GRAU
A)×-1=-8
B)3×-8=13
C)7×+5=68-2×
D)14-3×=2×+29
E)8×-9=24×+11
F)10-4×=9-2-2×
G)3.(×-1)=6
H)2.(×+5)=-4
I)3.(2×-5)=9
J)5.(×-3)=2×+3
Me ajuda por favor

Answer 1

A) x-1=8

X= -8+1

X= -7

B)3x-8=13

3x=13+8

3x=21

X=21/3

X=7

c)7x+5=68-2x

7x+2x=68-5

9x=63

X=63/9

X=7

d)14-3x=2x+29

-3x-2x=27-14

-5x=13

X=13/5

X=2,6

e)8x-9=24x+11

-24x+8x=11+9

-16x=20

X=20/16

X=1,25

f)10-4x=9-2-2x

-4x+2x=9-2-10

-2x=7-10

-2x=-3

X=-3/2

X= -1,5

g)3.(x-1)=6

3x-3=6

3x=6+3

3x=9

X=9/3

X=3

h)2.(x+5)= -4

2x+10= -4

2x= -4-10

2x= -14

X= -14/2

X= -7

i)3.(2x-5)=9

6x-15=9

6x=9+15

6x=24

X=24/6

X=4

j)5.(x-5)=2x+3

5x-25=2x+3

5x-2x=3+25

3x=28

X=28/3

X= aproximadamente 9,33