# How do you solve and check your solution given #-3.4=0.4x#?

##### 2 Answers

... see below :)

#### Explanation:

When it says to solve, it means to find what the unknown variable equals to. So you want to isolate x to find what x is.

To check if what we got is correct, we can input the answer back into the equation. So since we found that x=-8.5, we want to replace x with -8.5

The left side is equal to the right side, so therefore we know that our answer is correct.

Find a value for

#### Explanation:

We are told

Therefore, to begin, we need find a value for

To check we substitute the values of

Subbing

which