if it is 5x + 8 = 23 then the answer is 3.
if it is 5x - 8 = 23 then the answer is 31/5.
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If 3x + 5x = -8, what is x + 1? 3x + 5x = -8 8x = -8 x = -1 x + 1 = -1 + 1 = 0
5x - 16 = 3x2x - 16 = 02x = 16x = 8
3x - 8 = 5x + 2 <+8 and - 5x off each side> -2x = 10 <divide each side by -2x> x = -5
5x=11y
Do you want the solutions to the equations? If so then: x = 7 and y = 4