2 years ago

Need help !! 25 points

Mathematics

1 answer:

lyudmila [28]2 years ago

6 0

Answer:

Step-by-step explanation:

You might be interested in

A b

kumpel [21]

The constant of proportionality is 4. Also, look at 36, and 9 because you could have just divided it it is not as complicated as you think.

5 0

1 year ago

Polynomial Basics

Rzqust [24]

Exponential is the answer okau

5 0

1 year ago

La diferencia entre un numero y ocho

cupoosta [38]

Answer:

hzyuzj ahuaaia hs7w8aijw. hu7sisj. shususijs bhsusj

4 0

2 years ago

Read 2 more answers

Solve.<br> y=x - 7<br> 5+2y=7

lesantik [10]

Answer:

$\huge\boxed{x=8;\ y=1\to(8;\ 1)}$

Step-by-step explanation:

$\left\{\begin{array}{ccc}y=x-7&(1)\\5+2y=7&(2)\end{array}\right\\\\\text{Substitute (1) to (2) and solve for x:}\\\\5+2(x-7)=7\qquad\text{use the distributive property}\\\\5+(2)(x)+(2)(-7)=7\\\\5+2x-14=7\\\\2x+(5-14)=7\\\\2x-9=7\qquad\text{add 9 to both sides}\\\\2x-9+9=7+9\\\\2x=16\qquad\text{divide both sides by 2}\\\\\dfrac{2x}{2}=\dfrac{16}{2}\\\\\boxed{x=8}$