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How do you solve the following system?: $x + y = 6, 4 x + 3 y = - 2$ $x +y = 6 , 4x + 3y = -2$

1 Answer

Nov 19, 2015

x=-20 and y=26

Explanation:

x+y=6 →→equation 1
4x+3y=-2 →→equation 2

Equation 1×4

4x+4y=24→→equation 3
4x+3y=-2→→equation 2

Eqn 3 - eqn 2

4x+4y=24
- 4x+3y=-2
﹏﹏﹏﹏﹏﹏﹏﹏
y =26
y=26 into any of the equations above

x+26=6
X=-20

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