Do Now M + 5 = 3 S – 4 = -7 -2 = a + 6 9y = 13.5 -5.4 = 0.3p.

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Do Now M + 5 = 3 S – 4 = -7 -2 = a + 6 9y = 13.5 -5.4 = 0.3p

Objective: Solve two-step equations Chapter 4 Lesson 4 Objective: Solve two-step equations

An equation that has two different operations. Two-Step Equations An equation that has two different operations. 2x – 3 = 1

To solve two-step equations Use the inverse operation to undo the whole number. Use the inverse operation to undo the number attached to the variable. 3. Check

SHOW BRAIN POP VIDEO

Here is a model! 3x + 2 = 23 -2 -2 Check it 3(7) + 2 = 23 3x = 21 3 3 -2 -2 3x = 21 3 3 X = 7 Check it 3(7) + 2 = 23 21 + 2 = 23 23 = 23

Take a look at this one! -2y – 7 = 3

Take a look at this one! -11 = 4 + 5r

You try a few! 4y + 1 = 13 6x + 2 =26 y = 3 x = 4

Try these! 24 + 9x = -3 50 = 16q + 2 X = -3 q = 3

Try some on your own! Sheet 4-4 do the odds. When you are done flip the sheets upside down. We are going to test your answers using the remote controls.

Your homework! Page 168 numbers 8-28 even. Chapter 4 test Friday