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5x + 3 Example: if x is 8 then 5x + 3 = (5 x 8) + 3 = 40 + 3 = 43
5x + 43 = 42 5x = -1 x = -1/5 Check it. -2 + 43 + 1 = 42 42 = 42 Check.
-43
5x+2y>8, y≤4 5x+2(4)>8 5x+8>8 5x>0 x>0
Move all the X elements to one side. 3-2x = -7x+43 (+2x to both sides) 3=-5x+43 Move all the numerical elements to the other side. (-43 to both sides) -40=-5x Divide by -5. 8=x