Question 1049090
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Please help me solve y=-4x
                     y=2x+3
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<pre>
y = -4x,        (1)
y =  2x + 3     (2)

Since the left sides of these equations are identical, their right sides are equal.
Therefore, you can write this equation

-4x = 2x + 3,

which says that the right sides are equal.

Now you have a single equation in only one unknown "x", and you can easily solve it by simplifying

-4x - 2x = 3,

-6x = 3,

x = {{{3/(-6)}}},

x = {{{-1/2}}}.

So, you just found x. It is x = {{{-1/2}}}.

Now you can easily find y from (1): y = -4x = {{{-4*(-1/2)}}} = 2.

<U>Answer</U>.  x = {{{-1/2}}},  y = 2.
</pre>