To simplify the expressions:
(4-x) - (5-2x)= 4 - x - 5 + 2x= (4-5) + (- x + 2x)= -1 + x= x - 1
6 + 2*(1.5x - 2)= 6 + 3x - 4= 3x + 2
3(a-2) - (a+4)= 3a - 6 - a - 4= 2a - 10
To simplify the expressions:
(4-x) - (5-2x)
= 4 - x - 5 + 2x
= (4-5) + (- x + 2x)
= -1 + x
= x - 1
6 + 2*(1.5x - 2)
= 6 + 3x - 4
= 3x + 2
3(a-2) - (a+4)
= 3a - 6 - a - 4
= 2a - 10