Introduction to Two-Step Equations

33 = 4a - 7

• a=-10

• a=10

• a=4.5

WRITE AN EQUATION

331 students went on a field trip. Six buses were filled and 7 students traveled in cars. How many students were in each bus?

• 7x+6=331

• 13x=331

• 6x+7=331

• 331-7=6x

Aliyah had $24 to spend on seven pencils. After buying them she had $10. How much did each pencil cost?

• 24-10=7x

• 7x- 24=10

• 7x+ 10=24

• 10+x=14

15 = 2a + 7

• 2

• 4

• 12

• 14

7p+ 9 = 40.5

• 7.5

• 3.5

• 8.5

• 4.5

12y -8 = 30.4

• y= 38.4

• y= 3.2

• y=1.8

• y=50.4

What is the inverse operation needed to solve for p?

2p - 254= 900

• subtraction

• addition

• multiplication

• division

3c + 5 = 23

• c = 3

• c = 6

• c = 7

• c = 18

Figure out what n equals in this equation:
6n + 4 = -26

• n=-6

• n= -5

• n= 8

• n= -4

5x + 4 = −6

• 2

• -2

• 10

• 15