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 decreased by 8 equals 26, find the number.
Two natrual numbers differ by 6 and sum of them is 36. Find the larger number.
The difference between two numbers is 15. Taking the smaller number as x; find:
(i) the expression for the larger number.
(ii) the larger number, if the sum of these numbers is 71.
Solve the following equation: 2x ÷ 3 = 7
Solve the following equation: `"x"/2 - 3 = 5`
Solve the following equation: `"y"/3 + 7 = 2`
Solve the following equation: `"z"/2.4 + 3.6 = 5.1`
Solve the following equation: 7x - 2 = 4x + 7
Solve the following equation: `3 2/5 - "y" = 2 1/2`
Solve the following equation: (7y +8) +7= 8
