The expressions 14, 6 + 8, and (6 + 8) are equivalent because they are all equal to 1
<h3>Equivalent expression</h3>
14
6 + 8
= 14
(6 + 8)
= 14
The coefficient of (6 + 8) is 1, so, the expression remains the same.
<h3>What is equivalent expression?</h3>
Equivalent expressions refers to those expressions that work the same even though they look different.
The importance or significance of equivalent expression is that its makes expressions easier to work with and solve.
Therefore, the expressions 14, 6 + 8, and (6 + 8) are all equivalent to 14.
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Answer:
The correct answer is C
Step-by-step explanation:
Because 9 × 3 = 27
and 11 × 3 = 33
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Area of triangle roof:
= 1/2 (3.5)(1.2)
= 2.1 m^2
Area of large rectangle:
= 3.5 x 2.5
= 8.75 m^2
Area of small rectangle (door):
= 1.5 x 2
= 3 m^2
Total area:
= 2.1 m^2 + 8.75 m^2 +
= 13.85 m^2
You are solving for the value of the variable, x. Note the equal sign, what you do to one side, you do to the other.
First, simplify by combining like terms:
-8x - x + 7 = 25
(-8x - x) + 7 = 25
-9x + 7 = 25
Isolate the variable x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS. First, subtract 7 from both sides:
-9x + 7 (-7) = 25 (-7)
-9x = 25 - 7
-9x = 18
Isolate the variable, x. Divide -9 from both sides. Note that when you are dividing by a negative number, your answer will have the opposite sign of the sign given in the equation:
(-9x)/-9 = (18)/-9
x = 18/(-9)
x = -2
x = -2 is your answer.
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