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3 votes
Solve the proportion

Solve the proportion-example-1

2 Answers

5 votes

Answer:


y=5.6 or
y=28/5

Explanation:

4/5 = y/7

Cross multiply:

4 × 7 = 5 × y

Multiply 4 × 7 & 5 × y:


28=5y

Solve the formed equation:


28=5y

⇒ Move all the terms containing y to the right side and the other values to the left side:

Add '-5y' to each side of the equation:


28+-5y=5y+-5y

Combine like terms:
5y+-5y=0


28+-5y=0

Add '-28' to each side of the equation:


28+-28+-5y=0+-28

Combine like terms:
28+-28=0


0+-5y=0+-28


-5y=0+-28

Combine like terms:
0+-28=-28


-5y=-28

Divide each side by '-5':


y=5.6 or
y=28/5

hope this helps :)

User Pereira
by
9.0k points
1 vote


y = (28)/(5)

Solve the proportion-example-1
User Ghtn
by
7.3k points

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