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3 years ago

2) which of these is a one-step equation? A) x + 9 = 21 B) x = 11 C) 2x + 9 = 21

Mathematics

2 answers:

Diano4ka-milaya [45]3 years ago

3 0

Answer:

Step-by-step explanation:

Because the only step is to subtract 9 from both sides and then you get x=12

Sauron [17]3 years ago

3 0

Answer:

there is no one step equation becuz

x+9 = 21

take 9 to the other side becos both are same variables then

21-9 = x

hence x= 12

next x=11 question can't be answered becuz this is not a complete question

2x+9 = 21

21-9 = 2x

12=2x

-----

hwnce 12/2 = 6 therefore x= 6

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Marrrta [24]

The value of the highlighted variables ave been determined a =6, b= 2 ,c= 6 , d = 2 , e = 6 , f = 6, g =1

<h3>What is an Expression ?</h3>

An expression are mathematical statement consisting of variables , constants and mathematical operators .

The given expression is

$\rm \dfrac{2}{x^2-36} - \dfrac{1}{x^2 +6x} = \dfrac{2}{(x+6)(x-6)}-\dfrac{1}{x(x+a)}\\\\= \dfrac{bx}{x(x+6)(x-6)}-\dfrac{x-c}{(x+6)(x+6)x}\\\\= \dfrac{dx-x+e}{x(x+6)(x-6)}\\\\= \dfrac{x+f}{x(x+6)(x-6)}\\\\= \dfrac{g}{x(x-6)}$

a = 6

b= 2

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f = 6

g =1

Therefore the value of the highlighted variables ave been determined.

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Daniel reads dor 8 times as many as April. Daniel read 44 minutes this week. How many minutes does April read?

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