The age of the grandson is 7 years and the grandfather is 84 years if the grandson's age in months is equal to the age of grandpa in years and the difference in age is 77.
What is a linear equation?
It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
Let's suppose the age of the grandsons is x years and
age of the grandfather's age is y years
Here some data are misprinted, so we are assuming the grandson's age in months is equal to the age of grandpa in years and the difference in age is 77.
Then according to the problem:
12x = y (as in 1 year, there are 12 months)
y -x = 77 (as difference in age is 77)
After solving both equations, we get:
x = 7 years and y = 84 years
Thus, the age of the grandson is 7 years and the grandfather is 84 years if the grandson's age in months is equal to the age of grandpa in years and the difference in age is 77.
Learn more about the linear equation here:
brainly.com/question/11897796
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