1. A)
7x= 3(35)
7x= 105
105/7= 15
Therefore x=15
2. C)
Let width equal X and length equal X+2. Use algebra 72 = X times X+2
Answer:
x = 4y+28
Step-by-step explanation:
x/4 -7 = y
Solve for x
Add 7 to each side
x/4 -7+7 = y+7
x/4 = (y+7)
Multiply each side by 4
x/4*4 = 4(y+7)
x = 4y+28