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5 December, 18:55

Explain how to solve the equation by reasoning about numbers, operations, and expressions. Do NOT use standard algebraic equation-solving techniques. 348 + 926 = x + 350

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  1. 5 December, 19:04
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    x=924

    Step-by-step explanation:

    348 + 926 = x + 350

    we have two 2-terms additions in both sides of the equation.

    348 and 350 are two similar numbers then x and 926 should be really close numbers.

    (due to commutative property of additions 348 + 926 = 350 + x)

    since 348 has two units less than 350, then 926 must have two units more than x, and x=924

    (indirect proportionality)
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