Answer:
Addition property of equality formula
Lesson Summary
We learned that the addition property of equality tells us that if we add the same quantity to both sides of an equation, then our equation remains the same. The formula is if a = b, then a + c = b + c.
Step-by-step explanation:
8=2^x
x=3
hope this helps (further explanation in picture)
Subtract 8 from each side:
-4x = 40
Divide each side by -4 :
x = -10
Answer:
x=-1
Step-by-step explanation:
Step 1: Factor left side of equation.
(x+1)(x+1)=0
Step 2: Set factors equal to 0.
x+1=0 or x+1=0
x=−1