Equations solving 1 step and intro to 2 step ones

Solve 1x-3=9

• x=3

• x=-12

• x=12

• x=9

• no solution

Which is correct?

• 3x+6=18

  x=4

• 36+-8x=52

  x=-2

• 6x=696

  x=114

• 21x=3

  x=-7

• 2x+4x=36

  x=6

Should you check your answer once done?

What is the inverse operation of subtraction

• Addition

• Division

• Multiplecation

• Squaring

  [something to the power of 2]

What steps did he take to solve #2?

To solve equations,you must the variable

(a)  

Solve 3x-5=16+3 hint in three steps it is done

use inverse operation

• x=6

• x=-7

• x=4

• x=8

How can you show multiplying in algebra?

• x

• [ ] parentheses

• put constant next to variable

• by distributive property