Question

resolva as equações :
A) 3x+1=2x+1
B) 4(x-3)=2x-5
C) 1-2x-3x-5

Answer 1

A) 3x+1=2x+1

3x - 2x = 1 - 1

x = 0

B) 4(x-3)=2x-5

4x - 12 = 2x - 5

4x - 2x = -5 + 12

2x = 7

x = 7 / 2

x = 3,5

C) 1-2x-3x-5 = 0

1 - 5x - 5 = 0

-4 - 5x = 0

- 5x = 4

x = 4/ -5