Expressions and Equations

PEMDAS

100

Evaluate the expression:

7 - (-3)

10

200

Evaluate the expression:
-11 + 8

-3

300

Evaluate the expression:

3 x 5 + 10

12

400

Evaluate the expression:

21 ÷ 3 x 5 ÷ 7

5

500

Evaluate the expression:

(1 + 1) x 15 ÷ 5

6

Evaluating Expressions

100

Evaluate the expression using the values given:

n - (n + m); use m = 1 and n = 1

-1

200

Evaluate the expression using the values given:

5(j + h); use h = 1 and j = -2

-5

300

Evaluate the expression using the values given:

x ÷ 5 - y; use x = -5 and y = 3

-4

400

Evaluate the expression using the given values:

y - x ÷ 4; use x = 4 and y = 3

2

500

Evaluate the expression using the given values:

y + xy ÷ 4; use x = 2 and y = 2

3

Simplifying Expressions

100

Simplify the expression:

-2(1 + 5x)

-2 - 10x

200

Simplify the expression: 

-3(3x - 5)

-9x + 15

300

Simplify the expression:

6(1 + 5n) - 7

-1 + 30n

400

Simplify the expression:

-6(-8n - 4) - 5

48n + 19

500

Simplify the expression:

-2(x - 4) + 7(8x - 3)

54x - 13

Solving Equations

100

Solve the equation:

-5x = -50

x = 10

200

Solve the equation:
1 - 7x + 2 = 17

x = -2

300

Solve the equation: 

x - 4 - 4x = 17

x = -7

400

Solve the equation:

7(-1 - 7x) = 91

x = -2

500

Solve the equation:
101 = 5(2x + 6) + 1

x = 7

Variables on Both Sides

100

Solve the equation:

7x - 9 = -7x + 5x

x = 1

200

Solve the equation:
3x - 8 - 8x = 1 + 2x - 4x

x = -3

300

Solve the equation:

-3(x + 3) = -25 - 5x

x = -8

400

Solve the equation:
3(x - 8) = -12 - 3x

x = 2

500

Solve the equation:

1 - 3x = -8(x - 6) - 7

x = 8