Math

Solving equations

100

Solve for x

 3x=15

x=5

200

State the operation that would be applied to both sides

x+7=14

Subtract 7 from both sides

300

Solve for the unknown

-19=-12+c

c=-7

400

Solve

10x-15x=43+32

x=-15

Solving equations algebraically

100

Solve

5x+8=23

x=3

200

Solve

x² -3= 6

x=3

300

WRITE AN EQUATION FOR THIS SENTENCE (a number, a, is doubled and than decreased by 20 and is equal to 10)

2a-20=10

400

8x+6 -3x-5x= 17

N/A

Solving equations with variables on both sides

100

Solve for n

−5 + 7n = 9n + 11

n=-8

200

Do a LS RS check for 

−5 + 7n = 9n + 11

n=-8

Therefore LS=RS

300

Solve

4(x − 3) = 32

x=11

400

Solve

4(x− 7) − 2(x + 3) = −15x

x=2

Solving equations with fractions

100

Find the LCD of

x/10 + 3x/5=7/2

LCD=10

200

Solve 

-5/6=2x/9

-15/4=x

300

4y/9 - 2y/3=10

y=-45

400

Describe the steps for solving an equation with fractions

Step 1: Find the lowest common denominator for the equation.

Step 2: Multiply every term in the equation by the lowest common denominator

Step 3: Reduce each term to create a “denominator free” equation

Step 4: Solve for the variable using the steps to solve an equation