Solving eqnsaddsub

Objective The student will be able to: solve equations using addition and subtraction. Designed by Skip Tyler, Varina High School

[object Object],[object Object]

1) Solve r + 16 = -7 ,[object Object],Whatever you do to one side has to be done to the other to keep it balanced! r + 16 -7 =

1) Solve r + 16 = -7 ,[object Object],[object Object],[object Object],[object Object],[object Object]

1) Solve r + 16 = -7 ,[object Object],[object Object],[object Object],[object Object],- 16 -16 r = -23 -23 + 16 = -7

2) Solve x + 2 = -3 Get the variable by itself. What is your first step? ,[object Object],[object Object],[object Object],[object Object],Answer Now

2) Solve x + 2 = -3 ,[object Object],[object Object],[object Object],[object Object],- 2 - 2 x = -5 -5 + 2 = -3 On homework and tests, be sure to check your work!! There is no reason why you should miss a problem!

3) Solve 8 = m - 3 ,[object Object],[object Object],[object Object],[object Object],Answer Now

3) Solve 8 = m - 3 + 3 + 3 11= m 8 = 11 - 3 ,[object Object],[object Object],[object Object],[object Object]

When solving equations, we want to eliminate double signs. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],As a general rule, replace “+ (- )” with “–” and “– (- )” with “+” . This will make things less confusing in the future!

4) Solve y + (-3) = 7 y – 3 = 7 + 3 +3 y = 10 10 + (-3) = 7 ,[object Object],[object Object],[object Object],[object Object],[object Object]

5) Solve. - x - (-2) = 1 -x + 2 = 1 - 2 - 2 - x = -1 x = 1 -( 1 ) + 2 = 1 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Solve -y – (-3) = 7 ,[object Object],[object Object],[object Object],[object Object],Answer Now

Journal ,[object Object],[object Object]

Solving eqnsaddsub

Empfohlen

Empfohlen

Weitere ähnliche Inhalte

Was ist angesagt?

Was ist angesagt? (20)

Andere mochten auch

Andere mochten auch (20)

Ähnlich wie Solving eqnsaddsub

Ähnlich wie Solving eqnsaddsub (20)

Kürzlich hochgeladen

Kürzlich hochgeladen (20)

Solving eqnsaddsub