-2x+y=9, x+2y=3 elimination
1 answer:
<span><span><span>−<span>2x</span></span>+y</span>=9</span>
<span><span><span><span>−<span>2x</span></span>+y</span>+<span>−y</span></span>=<span>9+<span>−y</span></span></span><span><span>
−<span>2x</span></span>=<span><span>−y</span>+9</span></span>
<span><span><span>−<span>2x</span></span><span>−2</span></span>=<span><span><span>−y</span>+9</span><span>−2</span></span></span><span>
x=<span><span><span>12</span>y</span>+<span><span>−9</span><span>2
Now, </span></span></span></span><span>x+<span>2y</span></span>=3
<span><span><span>x+<span>2y</span></span>+<span>−<span>2y</span></span></span>=<span>3+<span>−<span>2y</span></span></span></span><span>
x=<span><span>−<span>2y</span></span>+<span>3
Hoped I helped!</span></span></span><span>
</span>
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Then solve
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