Monday

January 26, 2015

January 26, 2015

Posted by **tia** on Tuesday, October 19, 2010 at 12:21pm.

2x-3y=13

3x+y=3

- maths -
**MathMate**, Tuesday, October 19, 2010 at 12:40pmBy 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.

- typo/error -
**Jen**, Tuesday, October 19, 2010 at 2:53pmx=2, Substitute x=2 in (1) or (2). 2 is easier.

- maths -
**MathMate**, Tuesday, October 19, 2010 at 5:11pmThank you Jen.

yes, x=2.

**Answer this Question**

**Related Questions**

math - solve the simultaneous equations to find the coordinates of the point of ...

maths pls help - 1. Solve the following simultaneous equations: log2 xy = 7 log2...

maths - solve the following simultaneous equations using matrices 3x-6y=24 and -...

Maths - solve the following pair of simultaneous equation: (x/a)+(y/b)=1 (x/b)+(...

math - solve the pair of simultaneous equations y=x+2 y+x^2

math - Solve the pair of simultaneous equations x^2=4-y x=y+2

Maths - 1.Solve the simultaneous equations: 5x + 4y = 13 3x + 8y = 5

maths - solve the simultaneous equations: y=x-2 ysquared+xsquared=10

Engineering - I need help solving the following simultaneous equations, for the ...

maths - using the substitution p=1/x, q=1/y, solve simultaneous equations 1/x-5/...