Question

The sum of two times x and 3 times y is 5. The difference of x and y is 5. Write two equations and graph to find the value of y. Oy=2 Oy=-1 O y = 4 Oy=-2

Answer 1

"The sum of two times x and 3 times y is 5."

From this sentence, we get the following equation

`2x+3y=5`

"The difference of x and y is 5."

From this sentence, we get the following equation

`x-y=5`

They are both line equations, and the solution of this system is the intercept between those lines.

Using a graphing software, we have the following graphs

The value of y is - 1.