A.) Both services will cost the same if it is for a 3 hours service.
B.) 16+9X=20+7X.
=>9x-7x=20-16.
=>2x=4.
=>x=4/2.
=>x= 2.
<h2>8 2/3 is the correct answer!</h2><h2 /><h3>5 3/4 becomes 5 9/12</h3><h3>9/12 + 11/12 = 20/12</h3><h3 /><h3>20/12 = 1 8/12 = 1 2/3</h3><h3 /><h3>5 + 2 = 7</h3><h3>7 + 1 2/3 = 8 2/3 or 8.666...</h3><h3 /><h3><em>Please let me know if I am wrong.</em></h3>
⇒ We start by multiplying out the bracket and this property is called
DISTRIBUTIVE property
⇒ from here the next step is simplifying by collecting like terms
⇒ The simplifying process is the application of
COMMUTATIVE property since this property allows us to 'group' the like terms together. In other words, this property allows us to move the
next to the
.
⇒ This what actually happened when we simplify
, we work out the sum of
and the answer is multiplied back to
. This is called the
ASSOCIATIVE property as we 'associating' the constant of the like terms.
⇒ Adding 10 on both sides to eliminate
on the left hand side of equation
Hence, the steps are
STEP 1
STEP 4
STEP 2
STEP 3
STEP 5
