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HELP PLEASE Solve the system by substitution -4.5x - 2y = -12.5 3.25x - y = -0.75

HELP PLEASE Solve the system by substitution -4.5x - 2y = -12.5 3.25x - y = -0.75
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4 votes
HELP PLEASE
Solve the system by substitution
-4.5x - 2y = -12.5
3.25x - y = -0.75

User Jared Forsyth
by
8.4k points

2 Answers

7 votes
You can also go on mathwey it would solve it fast
User Michael Cramer
by
8.4k points
4 votes
from the second equation ,we can know that y=3.25x+0.75
plug it into the first equation
-4.5x-2(3.25x+0.75)=-12.5
-4.5x-6.5x-1.5=-12.5
-11x=-11
x=1
plug it back into the second equation, y=3.25x+0.75=4
the answer would be (1,4)
User Davidmerrick
by
8.5k points
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