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Solve for r in r/r+15 = 3/8 by cross multiplying.

Solve for r in r/r+15 = 3/8 by cross multiplying.-example-1
User RGO
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2 Answers

3 votes

R is 5, you will multiply 3r +15 over 8r by 8r then u divide by 3 the answer will be R= 5

3 votes

The solution to the equation is r=9.

To solve the equation r/ r+15​ = 3/8 by cross-multiplying, follow these steps:

Cross-multiply to eliminate the denominators.

Solve for the variable r.

The equation is:

r/ r+15​ = 3/8

​Cross-multiplying gives:

8r=3(r+15)

Distribute on the right side:

8r=3r+45

Subtract 3r from both sides:

5r=45

Divide by 5 to solve for r:

r= 45/5

r=9

So, the solution to the equation is r=9.

User Agiopnl
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