Advertisements
Advertisements
प्रश्न
Solve the following equation: 3z – 18 = z – (12 - 4z)
Advertisements
उत्तर
3z – 18 = z – (12 - 4z)
⇒ 3z - 18 = z - 12 + 4z
⇒ 3z - 18 = 5z - 12
⇒ 3z - 18 + 18 = 5z - 12 + 18 ...(Adding 18 to both sides)
⇒ 3z = 5z + 6
⇒ 3z - 5z = 5z + 6 - 5z (Subtracting 5z from both sides)
⇒ - 2z = 6
⇒ `(-2z)/(-2) = 6/-2` ...(Dividing by -2)
∴ z = - 3
APPEARS IN
संबंधित प्रश्न
When two consecutive natural numbers are added, the sum is 31; find the numbers.
A whole number is increased by 7 and the new number so obtained is multiplied by 5; the result is 45. Find the whole number.
The difference between the ages of a woman and her son is 19 years and the sum of their ages is 37 years; find the age of the son.
Solve the following equation: 3y + 8 = 13
Solve the following equation: 48 z + 3.6 = 1.2
Solve the following equation: `"2z" - 2 1/2 = 3 1/3`
Solve the following equation: 5y – 15 = 27 -2y
Solve the following equation: 7z + 15 = 3z – 13
A problem states: 'One-third of a number added to one-fifth of it gives 32.' If x is the number, what is the correct equation?
If 6 is added to twice a number to get 22, the correct equation is:
