Can someone please help me with this. The first person who answers this gets brainliest .
1 answer:
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X = -4
See attached picture:
Answer:
Step-by-step explanation:
{700 = <em>S</em> + <em>A</em>
{4500 = 5<em>S</em> + 10<em>A</em>
−⅒[4500 = 5<em>S</em> + 10<em>A</em>]
{700 = <em>S</em> + <em>A</em>
{−450 = −½<em>S</em> - <em>A</em> >> New Equation
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[Plug this back into both equations above to get the A-value of 200];