Saturday

December 20, 2014

December 20, 2014

Posted by **aisha** on Wednesday, March 20, 2013 at 10:15am.

- maths -
**working hard**, Wednesday, March 20, 2013 at 10:30am2x + 3y = 13

4x + 5y = 23

multiply the first equation by 4, the second by 2, add:

8x + 12y = 52

subtract these two equations

8x + 10y = 46

______________

2y = 6 Divide 2

y=3

**Answer this Question**

**Related Questions**

Maths - Hey :) I'm sitting my maths non-calculator GCSE tomorrow and am ...

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

maths - helo sir/madam can u help me to solve this problem solve the following ...

maths - how do i solve this equation? 2/(x+1)=1/(x-1) - (1/(2x-1)) thx Get a ...

maths - solve this equation;5t(6 times 10 neg.3)=(6 times10neg -2) does it look ...

MATHS - Critical help please. Level 3 maths algebraic methods is really hard. Q...

maths - how would i solve the differential equation dx/dt=-kx^2 i.e. solve for x...

maths - Solve the following differential equation: (1 + x)*(dy/dx) = y where y ...

maths - Solve the following differential equation: (1 + x)*(dy/dx) = y where y ...

maths - I don't understand what to do at all, I've several like this if someone ...