Question

Simplify each expression

5x - 3y - 2x + 3y

8x - 7y - (3 - 6y)

3(r - 10s) - 4(7s + 2r)

2(4z - 2x + y) - 4 (5z + x - y)

Answer 1

5x - 3y - 2x + 3y
=3x

8x - 7y - (3 - 6y)
=8x-7y-3+6y
=8x-y-3

3(r - 10s) - 4(7s + 2r)
=3r-30s-28s-8r
=-5r-58s
2(4z - 2x + y) - 4 (5z + x - y)
=8z-4x+2y-20z-4x+47
=-8x+2y-12z+47

Answer 2

1)3x
2.)8x-y-3
3)-5r-58s
4)-8+2y-12z+47