Solve the equation
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Solve the equation
To solve the exercise, we first rewrite the entire division as a fraction:
Actually, we didn't have to do this step, but it's more convenient for the rest of the process.
To get rid of the fraction, we multiply both sides of the equation by the denominator, 4X.
20=5*4X
20=20X
Now we can reduce both sides of the equation by 20 and we will arrive at the result of:
X=1
Solve for X:
\( 3x=18 \)
The colon : means division or "ratio of". So 20:4x is the same as or 20÷(4x).
Multiplying by the denominator eliminates the fraction! This turns into the simpler equation 20 = 20x.
Yes! You can think of it as "20 divided by 4x equals 5", so 20 = 5 × 4x. Both methods give the same answer.
Substitute back: 20:4(1) = 20:4 = 5. Since 20÷4 = 5, our answer is correct!
Always verify by substituting back! If x=5, then 20:4(5) = 20:20 = 1, not 5. This shows x=5 is incorrect.
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