8y+7= y+21
Subtract y from both side
7y+7=21
Subtract 7 from both sides
7y = 14
Divide both sides by 7
Y=2 or A
Answer:
- sign between 9 and 64 under root, it should be + sign
Step-by-step explanation:
(-4)*(-8)(2)= 64
It should read x= √9+64 but not √9-54 which lead to incorrect solution
Answer:
Step-by-step explanation:
90 × 3=270 dollars
6×3= 18 lawns
1.) 9 cm
2.) 5 cm
3.) 10 in
4.) 4 in