Solve the system of equations by the substitution method

y = 2x+7

y=9x+8

Find the product and simplify 3a3 (-3a2 + 5a - 5)

A farmer has 7 3/4 rows of radishes in one field, 4 3/4 rows of radishes in another field, and 6 1/4 rows of radishes in a third field. How many rows of radishes does he have altogether?

He graph shows the relationship between the total cost and the number of gift cards that Raj bought for raffle prizes. What would be the cost for 5 of the gift cards?

How many solutions are there to the following system of equations? 4x-14y=6 -2x+7y=-3 0 1 2 infinitely many

Describe a situation of the equation * +10=2

What is the average of 107 and 136

How can i slove - 3x^4 + 27x^2 + 1200 = 0?

the glass container shown is filled to the height of 2.25 inches. How much sand is currently in the containers

Write and solve an equation to find the number n The difference of three times a number and 4 is - 19 Equation: = - 19 The number n=?

Two numbers that have eight as a factor