Question

Quiz
5
5x-2x = 7
x+y=7

Answer 1

x= 7/3, y= 14/3

Explanation:

5x-2x=7

x+y=7

Evaluate 5x-2x=7

5x-2x=3x

3x=7

divide both sides by 3

x=7/3

plug the x value into the second equation

7/3+y=7

subtract 7/3 from both sides

y=7-7/3

evaluate

21/3-7/3=14/3

x= 7/3, y= 14/3