Advertisements
Advertisements
Question
Solve the following equation and check your result:
2x − 1 = 14 − x
Advertisements
Solution
2x − 1 = 14 − x
Transposing x to L.H.S and 1 to R.H.S, we obtain
2x + x = 14 + 1
3x = 15
Dividing both sides by 3, we obtain
x = 5
L.H.S = 2x − 1
= 2 × (5) − 1
= 10 − 1
= 9
R.H.S = 14 − x
= 14 − 5
= 9
L.H.S. = R.H.S.
Hence, the result obtained above is correct.
APPEARS IN
RELATED QUESTIONS
The perimeter of a rectangular swimming pool is 154 m. Its length is 2 m more than twice its breadth. What are the length and the breadth of the pool?
The base of an isosceles triangle is `4/3` cm. The perimeter of the triangle is `4 2/15` cm. What is the length of either of the remaining equal sides?
Solve the following equation and check your result:
8x + 4 = 3(x − 1) + 7
Solve the following equation and check your result:
`x = 4/5 (x + 10)`
Solve the following equation and check your result:
`3m = 5m - 8/5`
Solve the following:
0.4(3x – 1) = 0.5x + 1
Solve the following:
8x – 7 – 3x = 6x – 2x – 3
Solve the following:
0.25(4x – 5) = 0.75x + 8
Solve the following:
3(5x – 7) + 2(9x – 11) = 4(8x – 7) – 111
Find a number whose fifth part increased by 30 is equal to its fourth part decreased by 30.
