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8 February, 10:23

45 (2x+5) - 4=1 Drag and drop the statement that shows the solution to the equation into the box.

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  1. 8 February, 10:36
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    Given equation : 45 (2x+5) - 4=1

    45 is in front of parenthesis (2x+5).

    So, we need to multiply 45 by (2x+5).

    In order to multiply 45 by (2x+5), we need to distribute 45 over (2x+5).

    We get, 45*2x + 45*5 = 90x + 225.

    Therefore, 45 (2x+5) - 4=1 equation could be written as

    90x + 225 - 4 = 1 in first step.

    Now, subtraccting 225-4, we get 221.

    In second step 90x + 225 - 4 = 1 can be written as

    90x + 221 = 1.

    Subtractcing 221 from both sides, we get

    90x + 221 - 221 = 1-221.

    In third step we can simplify equation to

    90x = - 220.

    Dividing both sides by 90.

    90x/90 = - 220/90.

    In fourth step we get equation,

    x = - 220/90.

    On simplifying fraction - 220/90, we get - 22/9 and in decimal we get - 2.44 ...

    So, final answer is x = - 22/9 or - 2.44 ...
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