A number multiplied by 6 and divided by 5 give four more than a number? | MathCelebrity Forum

A number multiplied by 6 and divided by 5 give four more than a number?

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A number multiplied by 6 and divided by 5 give four more than a number?

A number is represented by an arbitrary variable, let's call it x.

Multiply by 6:
6x

Divide by 5
6x/5

The word "gives" means equals, so we set this equal to 4 more than a number, which is x + 4.
6x/5 = x + 4

Now, multiply each side of the equation by 5, to eliminate the fraction on the left hand side:
6x(5)/5 = 5(x + 4)

The 5's cancel on the left side, giving us:
6x = 5x + 20

Subtract 5x from each side
x = 20

Check our work from our original equation:
6x/5 = x + 4

6(20)/5 ? 20 + 4
120/5 ?24
24 = 24 <-- Yes, we verified our answer
 
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