Algebra post assessment g5

Identify the missing number in the expression: 5x + 3 = 18

• x = 5

• x = 2

• x = 10

• x = 3

Simplify the expression: -2x + 7 - 3x

• -5x - 7

• -5x + 3

• -5x + 7

• -5x - 3

Solve the equation: 2(3x - 4) = 10

• x = 2

• x = 5

• x = 4

• x = 3

What is the value of x in the equation: 4x + 8 = 20

• 2

• 3

• 10

• 5

If y = 2x - 5 and x = -3, what is the value of y?

• -11

• 3

• 0

• -7

Evaluate the expression for x = -2: 3x^2 - 2x + 5

• 17

• 9

• 12

• 21

Simplify the expression: 4(2x - 3) - 2(3x + 1)

• 6x - 10

• 2x - 14

• 8x - 12

• 10x - 16

Solve the equation: 5x - 7 = 18

• x = 3

• x = 7

• x = 5

• x = 10

In a class, there are 30 students. If each student has 5 pens, how many pens are there in total?

• 150

• 125

• 175

• 100

A rectangle has a length of 8 units and a width of x units. If the perimeter is 30 units, what is the value of x?

• 5

• 10

• 12

• 7