Find the solution of the system of equations.minus, 3, x, plus, 9, y, equals, minus, 21−3x+9y=−21minus, 3, x, plus, 8, y, equals, minus, 18−3x+8y=−18
Question
Solution 1
Sure, let's solve this system of equations step by step.
The system of equations is:
-3x + 9y = -21 -3x + 8y = -18
Step 1: Subtract the second equation from the first to eliminate x:
(9y - 8y) = (-21 - (-18))
This simplifies to:
y = -3
Step 2: Substitute y = -3 into the first equation:
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