Solving Equations - Mod. 2

One-Step Equations

100

4 = -8 + x

x= 12

200

x + 12 = 0

x= -12

300

5x = 80

x = 16

400

-16 = x+2

x= -18

500

3 = -2 – x

x= -5

Two-Step Equations & Proportions

100

6x – 13 = 11

x= 4

200

3x + 5 = 14

x= 3

300

(x/2)-5 =-8

x= -6

400

(x/3) = (8/12)

x = 2

500

(x/3) = ( 2x + 1) / 5

x = -3

Multi-Step Equations

100

Solving Equations

4x + 4 = 2x - 6

x = -5

200

Solving Equations

4 + 9x = 14 + 3x + 15 + 1x

x = 5

300

Solving Equations

-21 = 7(5k - 8)

k = 1

400

| x - 7 | = 5

x = 12, x = 2

500

Solving Equations

| 5x - 10 | = 15

x = 5, x = -1

Literal Equations

100

Solve for W:

7 = QW

7/Q = W

200

Solve for b:

m - c = b + w

m - c - w = b

300

Solve for w: 

J = w/x

w = Jx

400

Solve for x: 

J = w/x

x = w/J

500

Solve for K: 

A = (W + K) / L

K = AL - W

Words Words Words

100

Write an Equation: 

12 added to the product of 8 and a number, x, is equal to 25

12 + 8x = 25

200

Write an Equation:

two subtracted from the quotient of a number and 5 is equal to negative 12.

x/5 - 2 = -12 

300

Write an equation:

5 times the difference of a number c and a number d is the same as 25.

5(c - d) = 25

400

The following formula can be used to find the cost per t-shirt, C, when the total sales, T, is divided by the number of t-shirts sold, n.

C = T / n

PART 1: Solve the equation for T.

PART 2: Find the total sales if the Cost per shirt is 12 and the number of t-shirts sold is 8.

PART 1: T = nC

PART 2: T = $96

500

The following formula can be used to find the Area of a triangle when given the base and height:

A = (bh)/2

PART 1: Solve the equation for b.

PART 2: If the area of the triangle is 72 inches squared and the height is 6 inches, solve for b.

Part 1: 

b=(2A)/h

Part 2: b = 8