Solving for X Y Constants

Solve for x.

x-22 =4

• x =-18

• x = 26

• x = 4/22

Solve for y.

3y - 12 = 6

• y = 18

• y = 1/6

• y= 6

What should you do first when solving equations?

• Eliminate the parentheses

• Combine like terms

• Isolate the variable

• Whatever you do to one side do to the other.

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5

• Subtract 5

• Multiply by 7

• Subtract 7

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

So how do you know when it is "infinitely many" solutions?

• The constants are the same on both sides of the equal sign.

• The constants are the different on both sides of the equal sign.

• The variables are the same w/ different constants.

• The variables are the same w/ same constants.

How do you know when it is "no solution"?

• The constants are different on either side of the equal sign.

• The constants are the same on either side of the equal sign.

• The variables all cancel out.

• Both sides are the same

Solve:
-4x = 24

• 20

• -20

• 6

• -6

-20 = -4x - 6x

• x = 2

• x = -2

• x = -10

• x = 10