2 years ago

Expressions with and without Parentheses

Mathematics

1 answer:

Makovka662 [10]2 years ago

4 0

This is worded horribly, please reword and i will definitely help

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Max points :)) 33 please help no explanation needed..

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Substitution would be the simplest method of solution for which system? 5/3 x = 6y and 2x -3y = 8 3x - 2y =18 and 4x + 5y =60 y

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2 years ago

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kupik [55]

Answer:

$x=11$

Step-by-step explanation:

Angle EFB = 180 - 147 = 33 (Angles on a straight line add up to 180 degrees)

Angle FEB = 180 - 4x (Angles on a straight line add up to 180 degrees)

Since the angles in a triangle add up to 180 degrees ,

$33+(180-4x)+x=180$

Remove brackets:

$33+180-4x+x=180$

Add/Subtract:

$213-3x=180$

Subtract 213 from both sides:

$213-3x-213=180-213$

$-3x=-33$

Divide both sides by -3:

$\frac{-3x}{-3}=\frac{-33}{-3}$

$x=11$

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