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If x is substracted from each of 19, 27,...

If x is substracted from each of 19, 27, 38 and 57 the number so obtained are in per portion. Find the value of `(11x+2)`

A

54

B

61

C

59

D

60

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem step by step, we need to set up the equation based on the information provided. ### Step 1: Set up the proportion We know that if \( x \) is subtracted from each of the numbers 19, 27, 38, and 57, the resulting numbers are in proportion. This can be expressed as: \[ \frac{19 - x}{27 - x} = \frac{38 - x}{57 - x} \] ### Step 2: Cross-multiply the proportions To eliminate the fractions, we will cross-multiply: \[ (19 - x)(57 - x) = (27 - x)(38 - x) \] ### Step 3: Expand both sides Now we will expand both sides of the equation: - Left side: \[ 19 \cdot 57 - 19x - 57x + x^2 = 1083 - 76x + x^2 \] - Right side: \[ 27 \cdot 38 - 27x - 38x + x^2 = 1026 - 65x + x^2 \] ### Step 4: Set the equation Now we can set the two expanded sides equal to each other: \[ 1083 - 76x + x^2 = 1026 - 65x + x^2 \] ### Step 5: Simplify the equation Since \( x^2 \) appears on both sides, we can cancel it out: \[ 1083 - 76x = 1026 - 65x \] ### Step 6: Rearrange the equation Now, let's rearrange the equation to isolate \( x \): \[ 1083 - 1026 = 76x - 65x \] \[ 57 = 11x \] ### Step 7: Solve for \( x \) Now, we can solve for \( x \): \[ x = \frac{57}{11} \] ### Step 8: Find the value of \( 11x + 2 \) Now we need to find the value of \( 11x + 2 \): \[ 11x + 2 = 11 \left(\frac{57}{11}\right) + 2 = 57 + 2 = 59 \] ### Final Answer Thus, the value of \( 11x + 2 \) is: \[ \boxed{59} \]
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