4/15=x/75 (Multiply the numerator and the denominator of the fraction on the left hand side of the equation by 5)
20/75=x/75
x=20.
15 4 = 75 x C ross m u lt i pl i c a t i o n 75 ∗ 4 = 15 x 300 = 15 x ∣ : 15 x = 15 300 = 20 A n s w er i s x = 20.
To solve the equation 15 4 = 75 x , we cross-multiply and find that x = 20 . Therefore, 15 4 is equivalent to 75 20 .
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