What is the first step in solving this system of equations by elimination?
1 answer:
Answer:
B. Add the two equations.
Step-by-step explanation:
Lets solve our system of equations step-by-step
Step 1. Add the two equations
2x – 2y = 5 +
5x + 2y = 9
----------------
7x = 14
Step 2. Solve for x in the resulting equation
7x = 14

x = 2
Step 3. Replace the value of x in any of the original equations
2x – 2y = 5
2(2) – 2y = 5
4 – 2y = 5
-2y = 5 - 4
-2y = 1

We can conclude that the correct answer is: B. Add the two equations.
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Answer:
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Step-by-step explanation:
B? <span>
1 2/3 </span><span>÷ 1 1/9 = 1.5
2.34 </span><span>÷ 0.6 = 3.9</span>
Answer: A. 40
Step-by-step explanation:
7/9 = 14/18
14-5=9
9/18=1/2