Question

Resolva as equações:
a) 2× + 5 = 27 c) 7× + 1 = 6× + 6

b) 4× - 8 = 2 × +6 d) 5× - 3 = 2× - 9

Answer 1

A) 2X+5=27
2X=27-5
2X=22
X=22/2
X=11

B)4X-8=2X+6
4X-2X=6+8
2X=14
X=14/2
X=7

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

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