15*5.5 = 82.5
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-15x=-5*3x+2 -15x=-15x+2 +15x +15x ----------------- 0=2
550 + 550 = 1100
9x + 7 = 15x + 1 ___-1_______-1 9x + 6 = 15x -9x_____-9x ____6=6x ____/6_/6 ____1=x x equals 1.
Here is the answer with Steps: 15x - 18 = -2x - 5 15x = -2x + 13 17x = 13 x = 13/17 x ~ .764705882
15x+25y = 315 25y = -15x+315 y = -0.6x+12.6 which is now in slope-intercept form