Solve by the substitution method

y=3x-12

2x-3y=-13

51+-4x=43 What does X equal

The width of a rectangle is 4 cm. less than the length. Find the dimensions of the rectangle if the perimeter is 44 cm.

What's bigger 3/4 or 80% and how do u know

What is the and for 7/12 / 2 5/8

How many ways are there for 6 women and 4 men to stand in a line so that no two men stand next to each other?

The time it takes to drive to Joliet is 6 hours more than half the time it takes to drive to Davenport. It takes 8 hours to drive to Joliet. How many hours does it take to drive to Davenport?

there are between 24 and 40 students in a class the ratio of boys to girls is 4:7 how many students are ther in a class

Write an equation that shows an estimate of each answer, 495 + 812

A boy purchased a party-length sandwich 53 in. long. He wants to cut it into three pieces so that the middle piece is 6 in. longer than the shortest piece and the shortest piece is 8 in. shorter than the longest piece.

How do you get the right answer?