Question

A) 5×+7=-2×-14

B) ×/5+2=3×-26

C) 2/3×-3=5/4×

D)-3/5+5×/4=2×+1/2

Answer 1

A)
5x+7=-2x-14
5x + 2x = -14 - 7
7x = -21
x = -21/7
x = -3

B)
x/5+2=3x-26
x/5 - 3x = -26 - 2
x/5 -15x/5 = -28
-14x = -28.5
x = -140/-14
x = 10

C)
2/3x-3=5/4x
2/3x - 5/4x = 3
(8 - 15)/12x = 3
-7 = 3.12x
36x = -7
x = -7/36

D)
-3/5+5x/4=2x+1/2
(-12 + 25x = 40x + 10)/20
-12 + 25x = 40x + 10
40x - 25x = -12 - 10
15x = -22
x = -22/15

=)