Question

Resolva as equações
a) 6x = 2x + 16
b) 2x -5=x+1
c) 2x +
3x + 4
d) 5x + 7 = 4x + 10
e) 4x - 10 = 2x + 2
f) 4x - 78x-2
g) 2x + 1 = 4x - 7​

Answer 1

a) 6x = 2x + 16

6x - 2x = 16

4x = 16. x = 4.

b) 2x - 5 = x + 1

2x - x = 1 + 5

x = 6.

c) 2x + 3x + 4=

=5x + 4.

d) 5x + 7 = 4x + 10

5x - 4x = 10 - 7

x = 3

e) 4x - 10 = 2x + 10

4x - 2x = 10 + 10

2x = 20. x = 10

f) 4x - 78x - 2

=-74x - 2

g) 2x + 1 = 4x - 7

2x - 4x = -7 - 1

-2x = -8

x = 4