Solve each system by substitution.

1) x=y

2x+2y=0

Slope-intercept form for the line with y-intercept 5 and slope -1/4

How to show my work for this problem: 4 divided by 296

Ten individuals attend a group ski lesson. two individuals are selected from the group lesson to receive private lessons for a 15-minute period. in how many ways can the two individuals be selected if order is not important?

Consider the sequence of steps to solve the equation: 5 (x - 3) = 7x 2

Gabrielle is 12 years older than Mikhail. The sum of their ages is 90. What is Mikhail's age?

What is 6 2/9 rounded to the nearest half

A shopper paid $11.35 sales tax on an HD video recorder with a purchase price of $283.75. Find the sales tax rate.

What is the best estimate of the quotient 14.98 divided by 2.984

Daniel expanded the expression as shown. Negative 2 (Negative 8 x minus 4 y + three-fourths) = negative 10 x minus 8 y minus 1 and one-fourth What errors did he make? Select three options.

Solve the system of equations by the substitution method y = 2x+7 y=9x+8