Question

Question 3

Solve this system by using the elimination method.
4x + 2y = 8
5x + 3y = 9

Answer 1

x=3, y=-2. (3, -2).

Explanation:

4x+2y=8

5x+3y=9

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simplify 4x+2y=8 into 2x+y=4

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2x+y=4

5x+3y=9

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y=4-2x

5x+3(4-2x)=9

5x+12-6x=9

-x=9-12

-x=-3

x=3

2(3)+y=4

6+y=4

y=4-6

y=-2