Question

Solve the system:
4x - 3y = 2
16x + 9y = 15

Answer 1

x=3/4, y=1/3. (3/4, 1/3).

Explanation:

4x-3y=2

16x+9y=15

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3(4x-3y)=3(2)

16x+9y=15

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12x-9y=6

16x+9y=15

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28x=21

x=21/28=3/4

4(3/4)-3y=2

3-3y=2

3y=3-2

3y=1

y=1/3