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zhuklara [117]
3 years ago
7

2x + 3y = 13 5x – 3y = 1 What is the value of x? What is the value of y?

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
5 0

Use <u>elimination</u><u>.</u>

Add the equations by columns to get the third equation,

2x+5x=7x

3y-3y=0

13+1=14

The new equation has only one unknown, 7x+0=14 so x=2.

Now plug in the fact that x=2 into one of the equations and solve for y (I will pick 2nd equation),

5\cdot2-3y=1

-3y=-9\implies y=3.

The value of x=2 and y=3.

Hope this helps :)

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