Answer:
a = 4.5
Explanation:
-15a + 19 - 35 = -84
Combine like terms *in this case would be all numbers without a variable*
19 - 35 = -16 *it’s negative because the 35 is bigger so we use the sign it’s assigned*
Then plug that back into our equation
-15a - 16 = -84
We want the variable on it’s on one side of the equation
So we do the opposite of -16 to move it to the other side of the equation
-15a - 16 = -84
+16 +16
-15a = -68
Once again we take the sign of the bigger number *in this case it’s negative*
Then to get the variable “a” on it’s own we do the opposite of multiplication which is division
To get —> a = 4.5
The answer is a positive because when you divide/multiply two negatives it cancels out to become a positive
Answer = a = 4.5