Answer:
a+(−4)=−13
a - 4 = - 13
a = -13 + 4
a = -9
hope it helps!
Answer: The value of a is -9.
Step-by-step explanation;
Step 1. Negative times positive is negative. a - 4 = -13.
Step 2. Add four to both sides. a - 4 + a = -13 + 4.
Step 3. Simplify. a = -9.
