Answer:
see explanation
Explanation:
given
5x - 2y = 10 → (1)
4x - 3y = 15 → (2)
multiplying (1) by 4 and (2) by - 5 ( coefficients of the x- terms with a negative placed on the 5 ) and adding the result will eliminate x
20x - 8y = 40 → (3)
- 20x + 15y = - 75 → (4)
add (3) and (4) term by term to eliminate x
(20x - 20x) + (- 8y + 15y) = 40 - 75
0 + 7y = - 35 ← x has been eliminated
7y = - 35
y = - 5