Simplify the equation -7(5-4n)
1 answer:
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We know that According to Algebra of Real Functions :
If f and g are two real functions which are defined under the same domain then (f - g)(x) = f(x) - g(x)
Given f(x) = and g(x) =
⇒ (f - g)(x) = f(x) - g(x)
⇒
⇒
First Option is the answer
Hence, the equation for the question (7) is and equation for (8) is
. It can be solved by linear equation in one variable.
What is a linear equation in one variable?
A linear equation in one variable is written as . Here,
and
are constants and
is a variable.
(7)
Consider n number of baseball cards does Mike have. Since this is 19 less then the cards Allan have hence, as you add 19 in n then it will give 84.
(8)
Consider the speed of Michelle is n. As, it is 3 times less than the speed of the Jamie hence, it you multiply 3 with n then it will give 12.
Hence, the equation for the question (7) is and equation for (8) is
.
Learn more about linear equation in one variable from the following link:
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