Prove that -4x - 3 (3x - 6) + 8 (2.5x + 3.5) equals 7x + 46 using the commutative property.

Let's simplify step-by-step.

−4x−3(3x6)+8(2.5x+3.5)

Distribute:

=−4x+−3(3x6)+(8)(2.5x)+(8)(3.5)

=−4x+−9x6+20x+28

Combine Like Terms:

=−4x+−9x6+20x+28

=(−9x6)+(−4x+20x)+(28)

=−9x6+16x+28

=−9x6+16x+28

step-by-step explanation:

given perimeter: 28cm

length: 9cm

atp,

2(l+w)=p of the reactangle

2(9+x)=28

18+2x=28

2x=28-18

x=10/2

x=5

therefore width is 5 cm