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
If a and b are positive integers, then the solution of the equation ax = b will always be a ______.
The equation having – 3 as a solution is ______.
Which of the following equations can be formed starting with x = 0?
Sum of two numbers is 81. One is twice the other.
- If smaller number is x, the other number is ______.
- The equation formed is ______.
- The solution of the equation is ______.
- The numbers are ______ and ______.
______ is the solution of 3x + 10 = 7.
In whole numbers, x + 8 = 12 – 4 has ______ solution.
x – 1= ______; when 2x = 2.
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 `x - 7/8 = 7/8`, then x = ______.
A number exceeds the other number by 12. If their sum is 72, find the numbers.
