Question

a) 2x+4/3 = 4x/7 b) 1/5x-7 = -3/ 2x-8 c) x-5/x+6 = 4/3

d) 6/5 = x-7/2(x+1)

Answer 1

a) (2x + 4)/3 = 4x/7
(2x + 4).7 = 4x.3
14x + 28 = 12x
14x - 12x = -28
2x = -28
x = -28/2
x = -14

b) (2x - 8).1 = -3(5x - 7)
2x - 8 = -15x + 21
2x + 15x = 21 + 8
17x = 29
x = 29/17

c) 3(x - 5) = 4(x + 6)
3x - 15 = 4x + 24
-15 - 24 = 4x - 3x
-39 = x

d) 6.2(x + 1) = 5(x - 7)
12x + 12 = 5x - 35
12x - 5x = -35 - 12
7x = -47
x = -47/7