3 years ago

Solve 3x + 7 = 22 for x

Mathematics

2 answers:

MArishka [77]3 years ago

8 0

Answer:

x = 5

Step-by-step explanation:

3x + 7 = 22

Subtract 7 from both sides.

3x + 7 - 7 = 22 - 7

3x = 15

Divide both sides by 3.

x = 5

olasank [31]3 years ago

8 0

X=5 because 22-7 is 15 then divide ot by 3 because you need x by its self then you get x=5
hope this helps and dont forget to hit that heart :)

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Which expression is equivalent to the expression below?(6c^2+3c/-4c+2)/(2c+1/4c-2)

algol [13]

Answer:

-3c

Step-by-step explanation:

The given expression is:

$\frac{\frac{6c^{2}+3c}{-4c+2}}{\frac{2c+1}{4c-2}}$

We need to simplify this expression. The rational expression in the denominator can be multiplied to numerator by taking its reciprocal as shown below:

$\frac{\frac{6c^{2}+3c}{-4c+2}}{\frac{2c+1}{4c-2}} \\\\ =\frac{6c^{2}+3c}{-4c+2} \times \frac{4c-2}{2c+1}\\\\=\frac{3c(2c+1)}{-(4c-2)} \times \frac{4c-2}{2c+1}\\\\ =-3c$