Sum
Solve: `("9x" + 7)/2 - ("x" - ("x" - 2)/7) = 36`
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Solution
`("9x" + 7)/2 - ("x" - ("x" - 2)/7) = 36`
`=> ("9x" + 7)/2 - ((7 xx x - 1("x" - 2))/7) = 36`
`=> ("9x" + 7)/2 - ((7"x" - "x" - 2)/7) = 36`
`=> ("9x" + 7)/2 - (("6x" - 2)/7) = 36`
`=> (7(9"x" + 7) + 2(-6"x" + 2))/14 = 36`
`=> (63"x" + 49 - "12x" + 4)/14 = 36`
`=> ("51x" + 53)/14 = 36`
⇒ 51x + 53 = 14 × 36
⇒ 51x = 504 - 53
⇒ 51x = 459
⇒ x = `459/51`
∴ x = 9
Concept: Solving Linear Inequations
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