Solve the following system go equations express your answer as an ordered pair in the formal (a, b) with no spaces between the numbers or symbols 2x+7y=4 -4x-4y=14

2x + 7y = 4multiply by 2
-4x - 4y = 14

4x + 14y = 8 (result of multiplying by 2)
-4x - 4y = 14
add
10y = 22
y = 22/10 reduces to 11/5

2x + 7y = 4
2x + 7(11/5) = 4
2x + 77/5 = 4...multiply by 5
10x + 77 = 20
10x = 20 - 77
10x = - 57
x = -57/10

solution is (-57/10, 11/5)