Introduction to Solving Algebraic Equations

2x=4

• x=2

• x=-2

• x=3

• x=4

4x=24

• x=5

• x=7

• x=6

• x=9

x-4=6

• x=10

• x=12

• x=-10

• x=7

12=x+3

• x=10

• x=6

• x=12

• x=9

• F

• G

• H

• J

Find k: 3(2x - 4) = 6x - k

Find n: n(4x - 2) = 16x - 8

4x = 1   
is an algebraic expression or algebraic equation?

• Algebraic expression

• Algebraic equation

The total number of hats made in February was 2,148,431. Which equation represents this situation?

• 2,148,431 = (562,937 + 607,822 + 492,375) + n

• 2,148,431 = (562,937 + 607,822 + 492,375) - n

• 2,148,431 = (562,937 + 607,822 + 492,375) x n

• 2,148,431 = (562,937 + 607,822 + 492,375) ÷ n

The table shows Sandra's weekly earnings, y , based on the number of hours she works. Which equation can Sandra use to calculate her weekly earnings when she works x hours?

​ (a)  

• y = 8x

• y = 5x + 40

• y = 10x

• y = 10x + 80