Question

What is the value of x in the solution to this system of equations?

5x+2y=67
x=3y-7

18.5
24
11
6

Answer 1

x = 11

Explanation:

5x + 2y = 67

x = 3y - 7

Substitute 3y - 7 for x in the fist equation and solve for y.

5(3y - 7) + 2y = 67

15y - 35 + 2y = 67

17y = 102

y = 6

x = 3y - 7

x = 3(6) - 7

x = 11

Answer: x = 11