Question

How do you check -x/5 + 3 = 7
i have found the answer (-20) i just need help with the check!!

Answer 1

Explanation:

Just substitute your answer, x=-20, back into the question:

`-(x)/(5) +3=7`

becomes

`-(-20)/(5) +3=7`

`LHS=(20)/(5) +3`

`=4+3`

`=7`

`=RHS`

So this confirms tour answer is correct.

Answer 2

You are correct

Explanation:

Simplify the expression

Find common denominator

Combine fractions with common denominator

Multiply the numbers

Multiply all terms by the same value to eliminate fraction denominators

Cancel multiplied terms that are in the denominator

Multiply the numbers

Subtract 15 from both sides

Simplify the expression

Subtract the numbers

Subtract the numbers

Solution

x= -20