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nika2105 [10]
4 years ago
11

Solve using subsitution2x + 3y = 10 y = -x + 3​

Mathematics
1 answer:
gayaneshka [121]4 years ago
3 0

2x + 3y = 10

y = -x + 3​ (plug -x+3 for y in the first equation because -x+3=y)

2x+3(-x+3)=10

2x+(-3x)+9=10

-x=1

x=-1

To find y, plug in -1 for x into any of the equations.  I will pick the second equation because it is easier.

y = -(-1) + 3

y=4

answer: x=-1, y=4, intersection point: (-1,4)​

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