Advertisements
Advertisements
Question
Solve the linear equation:
`n/2 - (3n)/4 + (5n)/6 = 21`
Advertisements
Solution
`n/2 - (3n)/4 + (5n)/6 = 21`
`(6n - 3(3n) + 2(5n))/12 = 21`
`(6n - 9n + 10 n)/12 = 21`
`(6n + n)/12 = 21`
`(7n)/12 = 12`
7n = 21 × 12
`n = (21 xx 12)/7`
n = 36
RELATED QUESTIONS
Solve the linear equation:
`x/2 - 1/5 = x/3 + 1/4`
Solve the linear equation:
`x + 7 - (8x)/3 = 17/6 - (5x)/2`
Solve the linear equation:
`(x - 5)/3 = (x - 3)/5`
Solve the linear equation:
`(3t - 2)/4 - (2t + 3)/3 = 2/3 - t`
Simplify and solve the linear equation:
3(5z – 7) – 2(9z – 11) = 4(8z – 13) – 17
Simplify and solve the linear equation:
0.25(4f – 3) = 0.05(10f – 9)
Solve: `(6x + 1)/3 + 1 = (x - 3)/6`
Solve: 5x - 2(2x - 7) = 2(3x - 1) + `7/2`
Solve the following:
1 – (x – 2) – [(x – 3) – (x – 1)] = 0
Denominator of a number is 4 less than its numerator. If 6 is added to the numerator it becomes thrice the denominator. Find the fraction.
