Advertisements
Advertisements
Question
The solution of the equation 3x + 7 = –20 is ______.
Options
`17/7`
–9
9
`13/3`
Advertisements
Solution
The solution of the equation 3x + 7 = – 20 is –9.
Explanation:
Consider the given equation 3x + 7 = –20
Transpose 7 to right-hand side then it becomes –7
3x = –20 – 7
3x = –27
x = `-27/3`
x = –9
APPEARS IN
RELATED QUESTIONS
Solve the following equations.
3 (n − 5) = 21
The solution of which of the following equations is neither a fraction nor an integer?
If 7x + 4 = 25, then x is equal to ______.
If 43 m = 0.086, then the value of m is ______.
The equation having 5 as a solution is ______.
In natural numbers, x – 5 = –5 has ______ solution.
x + 7 = 10 has the solution ______.
Any term of an equation may be transposed from one side of the equation to the other side of the equation by changing the ______ of the term.
If a number is increased by 20, it becomes 45. Then the number is ______.
If 84 exceeds another number by 12, then the other number is ______.
