PEMDAS
3 ( x - 7 ) = 9 ( 4x + 5 )
3x - 21 = 36x + 45
-36
-33x - 21 = 45
+21
-33x = 66
------ ------
-33 -33
x = -2
Your answer should be -2
I hope this helps!
Answer:
a. $27
b. $9
Step-by-step explanation:
The yearly premium on their homeowner's insurance policy is $450 for the coverage they need.
Their insurance company offers a discount of 6 percent if they install dead-bolt locks on all exterior doors.The couple can also receive a discount of 2 percent if they install smoke detectors on each floor.
a. What discount will Dave and Ellen receive if they install the dead-bolt locks?
dollars
b. What discount will Dave and Ellen receive if they install smoke detectors?
dollars
Answer: 6782.4 ft is your answer
Step-by-step explanation:
Answer:
96
Step-by-step explanation:
180-84=96
Answer: The number is: "2" .
_______________________________________________________
The expression is: 2 − (½)x = (½)<span>x ;
</span>→<span> in which "x" is the "unknown number".
</span>_______________________________________________________
Explanation:
______________________________________________________
Given:
_________________________________________________________
"Two decreased by a half of a number is one-half<span> of the number" ;
Let "x" represent the "unknown number" for which we wish to solve;
Write the expression as:
_________________________________________________
" </span>2 − (½)x = (½)x " .
_________________________________________________
Note: Add "(½)x" to EACH SIDE of the equation:
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2 − (½)x + (½)x = (½)x + (<span>½)</span>x ;
to get:
_________________________________________________
→ 2 = 1x ;
↔ 1x = 2 ;
↔ x = 2 .
_________________________________________________
Answer: The number is: " 2 " .
_________________________________________________
