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divide 25 in to 2 parts such that 7 times the first part added to 5 time the second part makes 139 |
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Answer» This word problem related to linear equations in one variable. Given sum of two parts = 25 Let first part = x second part should be = 25 - x 7 times the first part = 7x 5 times the second part = 5( x - 25 ) Given relation between to parts is 7 times the first part added to 5 times the second part = 139 Now write the word problem into Linear equation 7x + 5( 25 - x ) = 139 7x + 125 - 5x = 139 2x = 139 - 125 2x = 14 x = 14/ 2 x = 7 Therefore First part = x = 7 Second part = 25 - x = 25 - 7 = 18 |
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