$\left\{\begin{array}{ccc}y=-7x+2\\y=9x-1\end{array}\right\Rightarrow 9x-1=-7x+2\\\\9x-1=-7x+2\ \ \ |+1\\9x=-7x+3\ \ \ |+7x\\16x=3\ \ \ \ |:16\\x=\dfrac{3}{16}\\\\\text{substitute the value of x to the second equation}\\\\y=9\cdot\dfrac{3}{16}-1\\\\y=\dfrac{27}{16}-\dfrac{16}{16}\\\\y=\dfrac{11}{16}\\\\\text{The solution is}\ \left(\dfrac{3}{16};\ \dfrac{11}{16}\right)$

3 0

4 years ago

Explain how you would use a number line to find the absolute value of –12.

just olya [345]

The absolute value is 12. I don't know how you would use the number line to your advantage but that's because that's not how they taught me in school.

6 0

3 years ago

Read 2 more answers

What lies between 11

pav-90 [236]

Answer:

11.5 does

Step-by-step explanation:

8 0

3 years ago

Jayden took a number n and increased it by 25%. Then, he doubled the resulting product.

Rashid [163]