Answer:
r = -16
Step-by-step explanation:
We will use "distributive" property and "adding like terms" concepts in solving for the unknown variable "r".
The distributive property is:
a(b+c) = ab + ac
So
2(10r-7) = 20r - 14
also
-2(1+10r) = -2 - 20r
So, our equation becomes:
Now we add like terms and move variables (r) to one side and numbers to another. Like terms mean:
3r + 5r = (3+5)r = 8r
So, we have:
So,
the value of r is -16
Mx + nx = p
<span>You can factor x out of the mx + nx. </span>
<span>x(m + n) = p </span>
<span>Now, simply divide by the m + n. </span>
<span>x = p / (m + n)</span>
Answer:
Step-by-step explanation:
Equation
Cost = 0.75 * x
The answer is Cost = 0.75 * x
Answer:
Step-by-step explanation:
We are given that
2 + (3+5 ) 2 ÷ 4 ( 1/2)^4
2 + (8 ) 2 ÷ 4 ( 1^4 / 2^4)
Applying rule of exponents which says
(a/b)^m = a^m / b^m
2 + (8 ) 2 ÷ 4 ( 1 / 16)
2 + (8) ( 1/ 2 ) (1 / 16)
2 + 4 ( 1/16)
2 + (1/4)
(8+1)/4
9/4
Answer
,
distributive property is an algebra property which is used to multiply and single term in two or more terms inside a set of parentheses
