Question

4r + y = 23
3x - y= 12

Answer 1

7x = 35

Explanation:

Answer 2

9514 1404 393

Answer:

(x, y) = (5, 3)

Explanation:

We presume your two equations are ...

• 4x + y = 23
• 3x - y = 12

The coefficients of y are opposites, so we can add these equations to eliminate y:

(4x +y) +(3x -y) = (23) +(12)

7x = 35

x = 5

Substituting into the second equation, we get ...

3(5) -y = 12

y = 15 -12 = 3

The solution is (x, y) = (5, 3).