Question 924712

It says to solve the following System of equations by either addition or substitution??

y=-3x+8
4x-2y=14
<pre>
y = - 3x + 8_____3x + y = 8 ------ eq (i)
4x - 2y = 14_____2(2x - y) = 2(7)_____2x - y = 7 ------ eq (ii)
5x = 15 ------- Adding eqs (ii) & (i)
x = {{{15/5}}}, or {{{highlight_green(x = 3)}}}

y = - 3(3) + 8 ------- Substituting 3 for x in eq (i)
y = - 9 + 8
{{{highlight_green(y = - 1)}}}
You can do the check!!