3) (-28/72) = 2/7x(-28/72) * 7/2 = xx = -7/9
4) (3/5)x + 3x = 10(3/5 + 3)x = 10(18/5)x = 10x = (10 * 5) / 18x = 50 / 18x = 25 / 9
3) (-28/72) = 2/7x
(-28/72) * 7/2 = x
x = -7/9
4) (3/5)x + 3x = 10
(3/5 + 3)x = 10
(18/5)x = 10
x = (10 * 5) / 18
x = 50 / 18
x = 25 / 9