Question

If 3x + 4y = 10 and 2x + 3y = 6, then x + y = ?

Answer 1

x + y = 4

Explanation:

Given the 2 equations

3x + 4y = 10 → (1)

2x + 3y = 6 → (2)

Subtract (2) from (1) term by term on both sides

x + y = 4