Mathematics: Can someone please help me 3

Well— I mean, dilation of the same shape should always have the same angles.Dilation just changes the size of the shape, it should never change the angles....

Can someone please help me 3 - id315017351, bommat5706

Ответ:

neariah24

11.12.2021

Mathematics

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

PEMDAS is the order of operations, and stands for:

Parenthesis

Exponents (& Roots)

Multiplications

Divisions

Additions

Subtractions

First, subtract 10 from both sides of the equation:

$\frac{x}{3} + 10 = 13\\\\\frac{x}{3} + 10 (-10) = 13 (-10)\\\\\\\frac{x}{3} = 13 - 10\\\\\\\frac{x}{3} = 3$

Next, isolate the variable, x, by multiplying 3 to both sides of the equations:

$(\frac{x}{3}) * 3= (3) * 3\\\\x = 3 * 3\\\\x = 9$

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