3 years ago

Which value of x satisfies both -9x + 4y = 8 and -3x − y = 4 given the same value of y?

Mathematics

1 answer:

jeka943 years ago

5 0

Hello there,

The correct answer is C

Here's why,
-9(-8/7)+4y=8 is -4/7

and

-3(-8/7)-y=4 is -4/7

Hope this helps!

You might be interested in

Simplify [-2.8] please help me how to simplify this math proplem??????<br /><br />

Karolina [17]

In fraction form the answer would be -2 4/5.

7 0

3 years ago

Read 2 more answers

Expanded number is 7,080,287

stiv31 [10]

7,000,000+80,000+200+80+7

6 0

3 years ago

Q + 5/9= 1/6 from big ideas mathbook

Alika [10]

9We have such eqation
Q $+ \frac{5}{9} = \frac{1}{6}$ /*9 (multiply both sides by 9)
9Q+5= $\frac{9}{6}$ /-5 both sides
9Q= $\frac{9}{6}- 5$
9Q= $\frac{9}{6}- \frac{5*6}{6}$
9Q= $\frac{9-30}{6}$
9Q=- $\frac{21}{6}$ /:9 divide both sides by 9
Q=- $\frac{21}{6}:9$
Q $\frac{21}{6*9} =- \frac{21}{54}=[tex] \frac{7}{18}$ - its the answer