A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
minus, 3, x, plus, 4, y, equals, minus, 50
−3x+4y=
−50
3, x, plus, 3, y, equals, minus, 6
3x+3y=
−6
Answer
Multiple Choice Answers
A, d, d, to eliminate , y, .Add to eliminate y.
S, u, b, t, r, a, c, t, to eliminate , y, .Subtract to eliminate y.
S, u, b, t, r, a, c, t, to eliminate , x, .Subtract to eliminate x.
A, d, d, to eliminate , x, .Add to eliminate x.
To eliminate y, you need to subtract the two equations.
Thus, the correct first step is:
Subtract to eliminate y.