Evaluate 20a−a+4a−120𝑎−𝑎+4𝑎−1 if a=4𝑎=4.
Question
Evaluate 20a−a+4a−120𝑎−𝑎+4𝑎−1 if a=4𝑎=4.
Solution
The given expression is 20a - a + 4a - 1.
First, let's simplify the expression by combining like terms.
20a - a + 4a becomes 23a.
So, the simplified expression is 23a - 1.
Now, let's substitute a = 4 into the simplified expression.
23a - 1 becomes 23*4 - 1, which equals 92 - 1.
So, the final answer is 91.
Similar Questions
Solve the following equation, finding the value of 𝑥.4𝑥 + 4 = 40A. 𝑥 = 6B. 𝑥 = 9C. 𝑥 = 11D. 𝑥 = 14
-8A – 23 = -5(A + 4)
If (220 − 219 − 218) ÷ 4 = 2𝑥 , find 𝑥 =？
Use the chain rule to solve the following: a. 𝑦 = (𝑢 2 + 4𝑢 + 18) and 𝑢 = 𝑥 2 + 4 , find 𝑑𝑦 𝑑�
Evaluate the left hand side to find the value of aa in the equation in simplest form.x, to the power 4 , x, start superscript, one third, end superscript, equals, x, to the power ax 4 x 31 =x a
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.