<span><span><span>2x</span>−y</span>=5
</span>Add -2x to both sides.
<span><span><span><span>2x</span>−y</span>+<span>−<span>2x</span></span></span>=<span>5+<span>−<span>2x
</span></span></span></span><span><span>−y</span>=<span><span>−<span>2x</span></span>+5
</span></span>Divide both sides by -1.<span><span><span><span><span>
</span></span></span></span></span><span><span>
</span></span><span>y=<span><span>2x</span>−5
</span></span>Answer:
<span>y=<span><span>2x</span>−<span>5</span></span></span>
You should find that your system doesn't have solutions. This is also confirmed by the fact that the determinant of the matrix of the coefficient of the variables x, y and z is equal to zero.
180 is the answer . Just multiply both numbers.
There is no link or photo, so no person will be able to help... sorry!
You want the xs and the numbers on different sides.
2x-3x=-11-4
-x=-15
divide x by a -1
x=15