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4x + 10 + 3x = 40 - 3x 4x + 10 + 3x + 3x = 40 20x = 40 x = 2
3x + 2x = 40 5x = 40 x = 8
x+30 = 3x-50 x-3x = -50-30 -2x = -80 x = 40
x2 + 3x - 40 = (x + 8)(x - 5)
If 40 plus x equals 25 then x is equal to -15.