Solving Equations Grade 7B

Two-Step Equations

1

6x – 13 = 11

x= 4

2

3x + 5 = 14

x= 3

3

(x/2)+5 =13

x= 16

4

(x/2)-7=3

x= 20

5

(2/3x)+ 5 = 29

x= 36

Mixed Equations

1

Solving Equations

5(x - 2) = 30

x = 8

2

Solving Equations

9(5p + 1) = 54

p = 1

3

Solving Equations

3(2n+10) = 42

n = 2

4

Solving Equations

5m+3(m-4) = 44

m = 7

5

Solving Equations

2(𝑥 − 9) + 4 = 12

x = 13

Addition and Subtraction Equations with fractions and decimals

1

Solving Equations

x + 3 =4.5

x = 1.5

2

Solving Equations

x - 45.6= 92.4

x = 138

3

Solving Equations

49= 3x + 4x

x = 7

4

Solving Equations

14 = a + 6.7 + 2

a= 5.3

5

Solving Equations

21 = k - 9.7

k = 30.7

Area and Circumference

1

What is the diameter of a circle with a radius 4 cm?

d=8cm

2

What is the radius of a circle with a diameter 7 meters?

r=3.5 meters or r=7/2 meters

3

What is the circumference of a circle with a diameter 8 cm? Use pi as 3.14 

C=25.12 cm

4

What is the area of a circle with radius 3 cm? Use pi as 3.14

A=28.26 cm²

5

What is the area of the semi-circle with a diameter 8cm? Use pi as 3.14. 

A_semi=25.12 cm²

Mr. Kalash Trivia

1

How does Mr. Kalash spell his first name?

Mohammad

2

What is the color of Mr. Kalash's car?

black

3

How many siblings does Mr. Kalash have?

3 Siblings - 2 older, 1 younger

4

How many schools did Mr. Kalash move when he was a student?

7 schools

5

What was Mr. Kalash's major in university?

Electrical Engineering