Asked by tia
solve the following pair of simultaneous equations.
2x-3y=13
3x+y=3
2x-3y=13
3x+y=3
Answers
Answered by
MathMate
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)
Add(1) and (3)
11x = 22 ...(4)
Solve (4) to get
x=11
Substitute x=11 in (1) to solve for y.
2x-3y=13 ...(1)
3x+y=3 ...(2)
Multiply (2) by 3 and add to (1)
2x-3y=13 ...(1)
9x+3y=9 ...(3)
Add(1) and (3)
11x = 22 ...(4)
Solve (4) to get
x=11
Substitute x=11 in (1) to solve for y.
Answered by
Jen
x=2, Substitute x=2 in (1) or (2). 2 is easier.
Answered by
MathMate
Thank you Jen.
yes, x=2.
yes, x=2.
Answered by
stella thankGod
I don't understand what you guys did here explain further
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