1. -5y + 2y = -3y
2. -8r - 16 + 6r - 12
3. -8r - -16 + 6r - 12
4. -8r - -16 + 6r - 12
5. 2m +13
Step-by-step explanation:
why is there 2 of the same
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