Answer:
step 4
Step-by-step explanation:
because y is equation 2 is -y so the sign should have changed for -2x it should have been +2x since - and - equals to +
Answer:
No Solution.
Step-by-step explanation:
y=3x-7
y=3x+4
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3x-7=3x+4
3x-3x-7=4
-7=4
no solution.