+0

# how do you solve these using elimination?

+5
87
1

How do you solve these using elimination?

1,000,000 - 25,000x = y

and

600,000 + 10,000x = y

Guest Mar 3, 2017
Sort:

#1
+7078
+5

How do you solve these using elimination?

1,000,000 - 25,000x = y

and

600,000 + 10,000x = y

$$1,000,000 - 25,000x = y$$

$$\underline{600,000 \ + 10,000x = y}$$     subtract

.   $$400,000-35,000x=0$$

$$-35,000x=-400,000$$          divide

$$x=11\frac{3}{7}$$

or

$$600,000 + 10,000x = 1,000,000 - 25,000x$$

$$10,000x+25,000x=1,000,000-600,000$$

$$35,000x=400,000$$

$$7x=80$$

$$x=11\frac{3}{7}$$

$$y=600,000 + 10,000x$$

$$y=600,000 + 10,000\times\frac{80}{7}$$

$$y=600,000 + 114,285.7\overline{142857}...$$

$$y= 714,285.7\overline{142857}...$$

!

asinus  Mar 3, 2017

### 10 Online Users

We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details