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Please help? this is really hard

Please help? this is really hard-example-1

1 Answer

4 votes

Answer:

x=12

Explanation:

90-35=55

so 4x+7 needs to equal 55

4x+7=55

subtract 7 from both sides of the equation

4x+7-7=55-7

4x=48

divide 4 on both sides of the equation

4x/4x=48/4x

x=12

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