We have the expression:
Step 1. Substract 13 to both sides:
+13-13 on the left side cancel each other, and we are left with the following equation:
On the right side, we have that 47-13=34, thus:
Step 3. Divide both sides by -8:
On the left side, the -8 on the numerator and the -8 on the denominator cancel each other:
And the result of the division on the right is -4.25, thus:
