Lesson 4-1: Understand Equations and Solutions

What number would make this equation true? x + 2 = 4

• x = 0

• x = 1

• x = 2

• x = 4

When is an equation balanced or true?

• When x = any number from 1-10.

• When each side to the right and the left of the = have the same value.

• When the side to the left of the = is greater than the side to the right of the =.

• When the side to the left of the = is less than the side to the right of the =.

Which number would make both sides of this equation balanced? 4 = 16 ÷ n

• n = 2

• n = 4

• n = 12

• n = 20

Which number would make both sides of this equation balanced? 5n = 35

• n = 30

• n = 40

• n = 5

• n = 7

Which number would make both sides of this equation balanced? 72 - 41 = n

• n = 113

• n = 33

• n = 31

• n = 21

Which number would make both sides of this equation balanced? 18 ÷ 6 = n

• n = 3

• n = 6

• n = 12

• n = 108

Which value for x is the correct solution to this equation? x - 4.2 = 0

• x = 0

• x = 4.2

• x = 2.4

• x = 2.1

Which value for x is the correct solution to this equation? 4.9 = 10.9 - x

• x = 15.8

• x = 5.9

• x = 6.0

• x = 6.9

Which equations are true (or balanced) for x = 2?

• 7x = 14

• x = 8 ÷ 2

• x³ = 8

• 22 - x = 11

Which equations are true (or balanced) for x = 7?

• 7x = 14

• x = 105 - 98

• x² = 49

• x = 77 ÷ 11