This is simply a set of algebraic expressions which has no simpler form. Perhaps there should be an equals sign somewhere.
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-x - 2 + 15x = 14x - 2 = 2(7x - 1)
OK, SO 15x-3 = 2x+1 15x - 3 + 3 = 2x + 1 + 3 (add three to each side) 15x=2x+4 (simplIfy) 15x-2x=2x-2x+4 (subtract 2x from each side) 13x=4 (simplify) (13x/13)=(4/13) (divide each side by 13) x≈0.30769231
If y equals 3, 7 - 5y would be:7 - 5(3)Simplify.7 - 15 = -8.In conclusion, 7 - 5y = -8.
22 + y
Add like terms together: 21x-21