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26 July, 04:58

Liam is setting up folding chairs for a meeting. If he arranges the chairs in 4 rows of the same length, he has 3 chairs left over. If he arranges the chairs in 2 rows of that same length, he has 19 left over. How many chairs does Liam have?

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  1. 26 July, 08:56
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    75 chairs

    Step-by-step explanation:

    1. 9x+3 : write equation

    2. 7x+19 : write equation

    3. 9x+3=7x+19 : make both equations equal to each other

    4. 2x+3=19 : subtract 7x from both sides

    5. 2x=16 : subtract 3 from both sides

    6. 8 : divide 2 on both sides of the equal sign

    7. 9 (8) + 3=75 : plug 8 into the equation
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