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2 March, 07:39

1. 1 added to 3 times a number is equal to9 less than 4 time the number?

2. 7 more than 2 times a number is equal to 3 times the number?

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  1. 2 March, 07:50
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    1+3x = 4x-9

    add 9 to each side: 10+3x = 4x

    subtract 3x from each side: 10 = x

    7+2x = 3x

    subtract 2x from each side: 7 = x
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