Step-by-step explanation:
first subtract both equation and take out value of y then put that value in any equation you will get the value of x
Answer:
x = 10 , y = 7
Step-by-step explanation:
given the system of equations
- 3x + 4y = - 2 → (1)
- 3x + 2y = - 16 → (2)
multiplying (1) by - 1 and adding the result to (2) will eliminate x
3x - 4y = 2 → (3)
add (2) and (3) term by term to eliminate x
(- 3x + 3x) + (2y - 4y) = - 16 + 2
0 + (- 2y) = - 14
- 2y = - 14 ( divide both sides by - 2 )
y = 7
substitute y = 7 into either of the 2 original equations and solve for x
substituting into (1)
- 3x + 4(7) = - 1
- 3x + 28 = - 2 ( subtract 28 from both sides )
- 3x = - 30 ( divide both sides by - 3 )
x = 10
The solution is x = 10, y = 7
