Q12.Frame the equations for the following:
a.5 times a number added to 7 is 45
b.A number decreased by 10 is 500.
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Q12.Frame the equations for the following:
a.5 times a number added to 7 is 45
b.A number decreased by 10 is 500.
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Answer:
a) 5x + 7 = 45 , x = 38/5
b) x - 10 = 500 , x = 510
Hope it helps you
a. Let the number be 'x'
5 times a number is '5x'
7 is added which is '5x+7'
The result is 45
5x+7=45
b. Let the number be 'x'
Number is decreased by 10 means 'x-10'
The result is 500
x-10=500