Question

13). Resolva estas equações
a) 2x + 5 =27
c) 7x + 1 - = 6x + 6
b) 4x - 8=2x + 6
d) 5x-3=2x-9​

Answer 1

a) 2x+5=27
2x=22
x= 22/2
x= 11

C) 7x+1=6x+6
7x-6x= 6-1
x= 5

B) 4x-8=2x-9
4x -2x = -9+8
2x=-1
x= -1/2

D) 5x-3=2x-9
5x -2x= -9+3
3x=-6
x=-6/3
x=-2