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Sloan [31]
3 years ago
10

Which first step for solving the given system using substitution results in an equation without fractions?

Mathematics
1 answer:
My name is Ann [436]3 years ago
7 0

Step-by-step explanation:

Solve for y in the first equation

3x+y=9

y=8-3y

Hence, no fraction is formed

So, second option is correct

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m2</span>+<span>4m</span></span>+2</span>=0</span>
Step 2: Use quadratic formula with a=1, b=4, c=2.<span>
m=<span><span><span>−b</span>±<span>√<span><span>b2</span>−<span><span>4a</span>c</span></span></span></span><span>2a</span></span></span><span>
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m=<span><span><span>−4</span>±<span>√8</span></span>2</span></span><span><span>
m=<span><span>−2</span>+<span><span><span>√2</span><span> or </span></span>m</span></span></span>=<span><span>−2</span>−<span>√2</span></span></span><span>
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