3x+4x=8-x 7x=8-x (combine like terms [the "x's" in this equation])
7x+x=8 (add x to each side to get x on only one side)
8x=8 (combine like terms)
8x/8=8/8 (divide each side by 8)
x=1 (simplify)
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4x+7-3x = 15 4x-3x = 15-7 x = 8
5+4x-7 = 4x+3-x 4x-2 = 3x+3 4x-3x = 3+2 x = 5
7x = 3x - 12 4x=-12 x=-3
You need to organise your question properly. 3x+2y=4 4x + 3y= 7? Is 4 4x = 44x or 4-4x or 4+4x How can there be 2 equal signs in 1 equation?
4x plus 7 plus 3x equals 19 plus xx = 2