Question

1. Resolva as equações.
a) 6x = 2x + 16
b) 2x-5 = x + 1
c) 2x + 3 = x + 4
d) 5x + 7 = 4x + 10
e) 4x - 10 = 2x + 2
f) 4x - 7 = 8x - 2
g) 2x + 1 = 4x-7
h) 9x + 9 + 3x = 15
i) 16x -1 = 12x + 3
j) 3x - 2 = 4x +9​

Answer 1

Resposta:

Explicação passo-a-passo:

a)6x = 2x + 16

6x-2x=16

4x =16

X=16/4

X=4

b) 2x-5 = x + 1

2x-x=1+5

x=6

c) 2x + 3 = x + 4

2x-x=4-3

X=1

d) 5x + 7 = 4x + 10

5x-4x=10-7

X =3

e) 4x - 10 = 2x + 2

4x-2x=2+10

2x=12

X=12/2

X=6

f) 4x - 7 = 8x - 2

4x-8x=-2+7

-4x=5

X=5/-4

g) 2x + 1 = 4x-7

2x-4x=-7-1

-2x=-8

X=-8/-2 (-1)

X=8/2

X=4

h) 9x + 9 + 3x = 15

12x=15-9

12x=6

X=6/12

X=1/2

i) 16x -1 = 12x + 3

16x-12x=3+1

4x=4

X=4/4

X=1

j) 3x - 2 = 4x +9​

3x-4x=9+2

-x=11