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Misha Larkins [42]
3 years ago
6

Evaluate and simplify if possible:

Mathematics
1 answer:
Yuki888 [10]3 years ago
3 0
\frac{2x(3y - 4z)}{3(5x + 4z)}   Plug in the given values
\frac{2(4)(3(-1) - 4(-3)}{3(5(4) + 4(-3)}   Multiply where needed
\frac{8(-3 + 12}{3(20 - 12)}   Add and subtract inside the parentheses
\frac{8(9)}{3(8)}   Multiply
\frac{72}{24}
3


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Solve each system by elimination.
meriva

Answer:

4.)

a. x=  <u>-6</u> y-3

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b. x= <u>5</u> y + <u>13</u>

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3.)

a. x= <u>-4y</u> + <u>-8</u>

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Step-by-step explanation:

4.)  

a. 5x+6y=-15

Add -6y to both sides.

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4x−5y+5y=13+5y

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Divide both sides by 4

4x÷4= 5y+13÷4

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5.)

a.  (5x+4y=-8)

Add -4y to both sides

5x+4y+−4y=−8+−4y

5x=−4y−8

Divide both sides by 5

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b. 2x - 3y = 6

Add 3y to both sides.

2x−3y+3y=6+3y

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8 0
3 years ago
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Answer:

1 2/3m

Step-by-step explanation:

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