# maths

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solve the following pair of simultaneous equations.

2x-3y=13

3x+y=3

• maths -

By elimination:
2x-3y=13 ...(1)
3x+y=3 ...(2)
Multiply (2) by 3 and add to (1)
2x-3y=13 ...(1)
9x+3y=9 ...(3)
11x = 22 ...(4)
Solve (4) to get
x=11
Substitute x=11 in (1) to solve for y.

• typo/error -

x=2, Substitute x=2 in (1) or (2). 2 is easier.

• maths -

Thank you Jen.
yes, x=2.

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