Advertisements
Advertisements
प्रश्न
Solve the following equation: 7z + 15 = 3z – 13
Advertisements
उत्तर
7z + 15 = 3z – 13
⇒ 7z + 15 - 3z = 3z - 13 - 3z (Subtracting 3z from both sides)
⇒ 4z + 15 = - 13
⇒ 4z + 15 - 15 = - 13 - 15 ...(Subtracting 15 from both sides)
⇒ 4z = - 28
⇒ `"4z"/4 = (- 28)/4` ...(Dividing by 4)
⇒ z = - 7
APPEARS IN
संबंधित प्रश्न
A number increased by 17 becomes 54. Find the number.
A number decreased by 8 equals 26, find the number.
One-fourth of a number added to two- seventh of it gives 135; find the number.
The age of a man is 27 years more than the age of his son. If the sum of their ages is 47 years, find the age of the son and his father.
When three consecutive natural numbers are added, the sum is 66, find the numbers.
Solve the following equation: 3y ÷ 8 = 13
Solve the following equation: x - 3 = `5 1/2`
Solve the following equation: 5x – 2x +15 = 27
Solve the following equation: (7y +8) +7= 8
Solve the following equation: 2(z - 5) +3 (z + 2) - (3 - 5z) =10
