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View Full Version : Algebra-variables and equations

algebratrouble
Jan 10, 2008, 12:51 AM
HELP! None of this makes sense. Can anyone give a general explanation of the following- 5(x+3) + (4x-7y) + (3x+2y) = 5x + 15 + 4x - 7y +3x + 2y =12x + 15 - 5y
dscott_19
Jan 12, 2008, 04:11 PM
f(x)=2x^2-4x
dscott_19
Jan 12, 2008, 04:14 PM
f(x)=2x-4x