-3(y+8)-7(y-7)
Simplifiy by removing paraenthses and combining like terms
−3(y+8)−7(y−7)=−[3(y+8)+7(y−7)]=−[3⋅y+3⋅8+7⋅y+7⋅(−7)]=−(3⋅y+24+7⋅y−49)=−(3⋅y+7⋅y+24−49)=−(10⋅y−25)=−10⋅y+25=25−10⋅y−3(y+8)−7(y−7)=25−10⋅y
