Practice problem
Simplify the expression. 42x−62+22x−92+282−122x\frac{4}{2}x-\frac{6}{2}+\frac{2}{2}x-\frac{9}{2}+\frac{28}{2}-\frac{12}{2}x24x−26+22x−29+228−212x
72x\frac{7}{2}x27x
9x−4329x-\frac{43}{2}9x−243
9x+1329x+\frac{13}{2}9x+213
−3x+132-3x+\frac{13}{2}−3x+213
Type a concept, like “slope” or “photosynthesis”.
