if 4×-1=7 z= pls answer
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In Examples 7 to 10, state whether the statements are True or False.
Example 7: 12 is a solution of the equation 4x – 5 = 3x + 10.
Solution: False
[LHS = 4 × 12 – 5 = 43
and RHS = 3 × 12 + 10 = 46 They are not equal.]
Example 8: A number x divided by 7 gives 2 can be written as
x +1
7
= 2.
Solution: False.
Example 9: x + 2 = 5 and 3x – 1 = 8 have the same solutions.
Solution: True
Example 10: The equation 3x + 7 = 10 has 1 as its solution.
Solution: True
In each of the Examples 11 to 13, form an equation for each statement.
Example 11 : One fourth of a number is 20 less than the number itself.
Solution : Let the number be x.
15-04-2018
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