krisayon8126
28.09.2019 •
Mathematics
Use the substitution method to solve the system of equations. 2x+y=8 y=-x+5
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Ответ:
Step-by-step explanation:
Step 1: Add x to both sides.
2x+y+x=−x+5+x
3x+y=5
Step 2: Add -y to both sides.
3x+y+−y=5+−y
3x=−y+5
Step 3: Divide both sides by 3.
3x /3 = −y+5 /3
Ответ:
part a is 320 part b is 1600
Step-by-step explanation: