
Add 7 to both sides

At the left hand side 7 will cancel 7
At the right hand side 7 will add up

Divide through by 2

simplify the fraction

Answer:
40 square inch
Step-by-step explanation:
1/2+1/2= 1
1+1=2
2times 4= 8
8times 5= 40
if the problem has inches in it,
the answer will always equal to a square-inch
155 = 2x -15
170 = 2x
85 = x
She had 85 when she first started.
Turn f(x) into y so the equation is y=x+2. Now switch their places so it is x=y+2. Now solve for y. The answer is y=x-2.
Answer:
y=-1/5x-16/15
Step-by-step explanation:
slope intercept form y=mx+b
3x+15y=-16
15y=-3x-16 divide both sides by 15
y=-3/15x-16/15 simplify -3/15 to -1/5
y=-1/5x-16/15