How do you solve and check your solution given 4.7=a+7.1?

1 Answer
Jun 29, 2017

a=-2.4

Explanation:

To solve 4.7=a+7.1 first subtract 7.1 from both sides of the equation.

This gives you the answer a=-2.4

To check this answer, substitute a=-2.4 into your original equation to see if it is mathematically correct.

Check: substitute a=-2.4 into 4.7=a+7.1, this gives us

4.7=-2.4+7.1

and 7.1-2.4=4.7

4.7=4.7

The answer is correct.