Solve the system by substitution.

-x+8y=20

x=y+8

What is the range of y = square root x+7+5?

if the area of a triangle is 4.5 and the it's mutiblied by the scale factor of 7 what is the area of the bigger triangle

3 (2y-1) - 2 (2y) = 2. what is the answer to this

Jim earned $700 this week. This was $20 less than four times the amount he earned last week. Which equation, when solved for x, gives the amount of money Jim earned last week?

The equation below shows the profits, y from selling x scoops of ice cream y=-5x-8

1.875 divided by 500 word problems

A work crew has a new pump and an old pump. The new pump can fill a tank in 5 hours, and the old pump can fill the same tank in 7hours. Write and solve an equation for the time it will take both pumps to fill one tank if the pumps are used together?

Solve for x. Show your work. 1 x<-12 2

A glass bottle holds 3.75 cups of water. About how many milliliters of water can the bottle hold?

How to find x? -x+7=-4x-20