1) 108/90 = 42/51.2 = 8.4x = 1.2 / 8.x = 0.142857
2) (7x-3)/4 = (5-2x)/(7x-3)6 = 4(5-2x42x - 18 = 20 - 842x + 8x = 20 + 150x = 3x = 38 / 5x = 0.76
3) 5/(2x) = 3/(4-x5(4-x) = 3(2x20 - 5x = 620 = 11x = 20 / 1x = 1.818
4) 2/(6-x) = 4/(5x+32(5x+3) = 4(6-x10x + 6 = 24 - 410x + 4x = 24 - 14x = 1x = 18 / 1x = 1.2857
1) 108/90 = 42/5
1.2 = 8.4
x = 1.2 / 8.
x = 0.142857
2) (7x-3)/4 = (5-2x)/
(7x-3)6 = 4(5-2x
42x - 18 = 20 - 8
42x + 8x = 20 + 1
50x = 3
x = 38 / 5
x = 0.76
3) 5/(2x) = 3/(4-x
5(4-x) = 3(2x
20 - 5x = 6
20 = 11
x = 20 / 1
x = 1.818
4) 2/(6-x) = 4/(5x+3
2(5x+3) = 4(6-x
10x + 6 = 24 - 4
10x + 4x = 24 -
14x = 1
x = 18 / 1
x = 1.2857