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Published byDaniela Atkins Modified over 5 years ago

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Solving 2 step equations

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Two step equations have addition or subtraction and multiply or divide 3x + 1 = 10 3x + 1 = 10 4y + 2 = 10 4y + 2 = 10 2b + 5 = 9 2b + 5 = 9 2x - 1 = 5 2x - 1 = 5 3x + 5 = 2 3x + 5 = 2

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Let’s look at 2x + 2 = 6 First subtract 2 from both sides First subtract 2 from both sides 2x + 2 -2 = 6-2 2x + 2 -2 = 6-2 2x = 4 2x = 4 Then divide both sides by 2 Then divide both sides by 2 2x/2 = 4/2 2x/2 = 4/2 So x=2 So x=2

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How about 3x + 2 = 14 First subtract 2 from both sides First subtract 2 from both sides 3x + 2 - 2 = 14 - 2 3x + 2 - 2 = 14 - 2 Which gives you 3x = 12 Which gives you 3x = 12 Then divide both sides by 3 Then divide both sides by 3 3x/3 = 12/3 3x/3 = 12/3 So x = 4 So x = 4

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Let’s try 4x - 1 = 3 Add 1 to both sides Add 1 to both sides 4x - 1 + 1 = 3 + 1 4x - 1 + 1 = 3 + 1 4x = 4 4x = 4 Then divide both sides by 4 Then divide both sides by 4 4x/4 = 4/4 4x/4 = 4/4 So x = 1 So x = 1

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Try these on your own 3x + 1 = 10 3x + 1 = 10 4y + 2 = 10 4y + 2 = 10 2b + 5 = 9 2b + 5 = 9 2x - 1 = 5 2x - 1 = 5 3x + 5 = 2 3x + 5 = 2 X = 3 Y = 2 B = 2 X = 3 X = -1

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