[tex]y = - 4[/tex]
Step by step explanation:
Equation 1:
[tex]x = 2y + 11[/tex]
Equation 2:
[tex]7x + 2y = 13[/tex]
Put the value of X from equation 1 into equation 2.
[tex]7(2y + 11) + 2y = 13[/tex]
Solve the brackets.
[tex]14y + 77 + 2y = 13[/tex]
Simplify.
[tex]16y + 77 = 13[/tex]
Send 77 to the other side.
[tex]16y= 13 - 77[/tex]
[tex]16y = - 64[/tex]
Send 16 to the other side.
[tex]y = - \frac{64}{16} [/tex]
Answer:
[tex]y = - 4[/tex]
Hope this helped!
