It is a linear algebraic equation where the variable is x.
8x + 9 = 5x + 6
3x = -3
x = -1 < answer
Check.
8(-1) + 9 = 5(-1) + 6
-8 + 9 = -5 + 6
1 = 1
They both equal 1.
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5X+6=8X move 5x to the other side 6=8X-5X 6=3X then solve for x 6/3 = X 2 = X so X = 2 is the answer
5x-13x+6=0 5x-13x=-6 -8x=-6 -8x/-8=-6/-8 x = 3/4
13x - 9y - 10
9x + 3x - 9x = 6 + 8x - 113x = 8x - 11-5x = -11x = 2.2 or 11/5