Which is the best first step when solving the following system of equations? X+y=3 4x-y=7
2 answers:
Answer:
B. Add the first equation to the second equation.
Step-by-step explanation:
I just took the test
Answer:
Add the two equations together to eliminate y
Step-by-step explanation:
X+y=3
4x-y=7
I would use elimination since one equation has +y and one equation has -y
Add the two equations together
X+y=3
4x-y=7
-------------------
5x = 10
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Answer:
A.
Twice the sum of a number and three means that the number and three are in parentheses.
Answer:36
Step-by-step explanation:36÷ -4 = -9