x / 5 = (3x - 4) / 7
When solving equations with one rational expression on both sides, cross multiply.
5(3x - 4) = 7x
15x - 20 = 7x
8x - 20 = 0
8x = 20
x = 5 / 2
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3x=2x-12x=-12
15x minus 8=minus 180 3x+8=24
5*2-3x-1 = 0 10-3x-1 = 0 -3x = 1-10 -3x = -9 x = 3
7
An equation where x equals 3.