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klio [65]
3 years ago
15

-4x+-6y=24 how do you solve?

Mathematics
2 answers:
Bond [772]3 years ago
5 0
Solving for x

Since <span>6y</span><span> does not contain the </span>variable<span> to solve for, move it to the right-hand side of the </span>equation<span> by subtracting </span><span>6y</span><span> from both sides.
</span><span>−4x=−6y+24

</span>Divide<span> each </span>term<span> in the </span>equation<span> by </span><span><span>−4</span>.
</span><span>−<span><span>4x/</span><span>−4</span></span>=−<span><span>6y/</span><span>−4</span></span>+<span>24/<span>−4</span></span></span><span> 
</span>
Simplify
<span>x=<span><span>3y/</span>2</span>+<span>24/<span>−4
</span></span></span><span>
 </span>Divide 24<span> by </span><span>−4</span><span> to get </span><span><span>−6</span>.</span><span> 
</span><span>
x=<span><span>3y/</span>2</span>−6</span><span> 
</span>
x is equal to 3y/2−6  


You solve y the same way you solve x:

Because <span>−4x</span><span> does not contain the </span>variable<span> to solve for, move it to the right-hand side of the </span>equation<span> by adding </span><span>4x</span><span> to both sides.
</span><span>6y=4x+24
</span>
Divide<span> each </span>term<span> in the </span>equation<span> by </span><span>6.
</span><span><span><span>6y/</span>6</span>=<span><span>4x/</span>6</span>+<span>24/6</span></span><span> 
</span>
Simplify
y=<span><span>2x/</span>3</span>+<span>24/6

</span>Divide 24<span> by </span>6<span> to get </span><span>4.</span><span> 
</span><span>y=<span><span>2x/</span>3</span>+4</span><span> 
</span>
y is equal to 2x/3+4 
alina1380 [7]3 years ago
3 0
So,

Let's manipulate this into the y=mx + b form.

Add 4x to both sides
-6y = 4x + 24

Divide both sides by -6
y =  \frac{4}{-6} x - 4

Just use the slope to find the points you need.

The y-intercept is (0,-4).

The slope is \frac{4}{-6}.  Finding the next point:
(-6,0)

You could have also used the <em>slope intercept method.</em>

-4(0) - 6y = 24
-6y = 24

Divide both sides by -6
y = -4
(0,-4)


-4x - 6(0) = 24
-4x = 24

Divide both sides by -4
x = -6
(-6,0)
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