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

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.