Question

Resolva as equações a seguir:a)
3 (x + 1) + 2 (2x –3) = 5 (x -1 ) + 8
b) 2 (2x + 7) + 3 (3x –5)= 3 (4x -5) -1
c) 2 (x –3) + 8x + 4 = 5 (x + 2

Answer 1

Resposta:

a) 3x+3+4x-6=5x-5+8

7x-3=5x+3

7x-5x=3+3

2x=6

x=3

b)4x+14+9x-15=12x-15-1

4x+14+9x=12x-1

13x-12x=-1-14

x=-15

c) 2x-6+8x+4=5x+10

10x-2=5x+10

10x-5=10+2

5x=12

x=12/5

espero ter ajudado