Question

RESOLVER
a)2x + 1 = 5/2
b)-8x + 6 = x + 1
c)6x + 7 = 9x- 2

Answer 1

a. 2x + 1 = 5/2

2x=5/2-1

2x=2.5-1

2x= 1.5

x=1.5÷(-2)

x= -0.75

b. -8x+6=x+1

-8x-x=1-6

-9x=-5

x=-5÷9

x=−0.5555555556

c. 6x+7=9x-2

7+2=9x-6x

9=3x

9÷(-3)=x

-3=x