How do you solve 2x-y=6 and x+y=-3 by using substitution? Show steps.
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Answer:
Replace all occurrences of x with –3–y in each equipment.
Step-by-step explanation:
replace all occurrences of xx in =2x‐y=6, 2x‐y=6 with ‐3‐y‐3‐y
simply=2(‐3‐y) ‐y2(‐3‐y)‐y.
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