a) x - (2x + 3) + (2 - 0.5x= x - 2x - 3 + 2 - 0.5= (x - 2x - 0.5x) + (-3 + 2= -1.5x - 1
b) 2 + 3(y - одна третье) - 2(0.5 + у= 2 + 3y - 1/3 - 2*0.5 - 2= 2 + 3y - 1/3 - 1 - 2= 0 + 3y - 2у - 1/3 - = y - 4/3
a) x - (2x + 3) + (2 - 0.5x
= x - 2x - 3 + 2 - 0.5
= (x - 2x - 0.5x) + (-3 + 2
= -1.5x - 1
b) 2 + 3(y - одна третье) - 2(0.5 + у
= 2 + 3y - 1/3 - 2*0.5 - 2
= 2 + 3y - 1/3 - 1 - 2
= 0 + 3y - 2у - 1/3 -
= y - 4/3