-0.7 - (-2.5) =
-0.7 + 2.5 =
2.5 - 0.7 = 1.8
1.8 is your answer
hope this helps
Start from

It may be useful to multiply the whole expression by 2, in order to get rid of denominators:

Distribute the negative sign in the left hand side:

Move all terms involving x to the left, and all constants to the right:

Sum like terms:

DIvide both sides -5:

Answer:
The answer is 25 but I'm not sure you can simplify a whole number
Answer:
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