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avenhollander
06.12.2019 •
Mathematics
Solve the system of equations 3x-y=-27 and 4x+2y=-6 by combining the equations
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Ответ:
(-6, 9) is the solution set for given system.
Step-by-step explanation:
Given that:
3x-y=-27 eq1
4x+2y=-6 eq2
Solving by combining the equations:
Dividing eq2 by 2 we get:
2x + y = -3 eq3
Now add eq1 and eq3, we get:
5x = -30 (y from both equations will be cancelled out)
Dividing both sides by 5:
x = -6
Now putting value of x back in eq3:
2(-6) + y = -3
-12 + y = -3
Adding 12 on both sides:
y = -3 + 12
y = 9
So the solution set for given system is (-6, 9)
i hope it will help you!
Ответ: