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VikaD [51]
2 years ago
5

Combine like terms to simplify the expression: -4 + 7 − 2x + 10x = ______

Mathematics
2 answers:
exis [7]2 years ago
8 0

Answer:

3 + 8x

Step-by-step explanation:

kakasveta [241]2 years ago
7 0

Answer:

-4+7-12x

Step-by-step explanation:

add the 2x and 10x becuz there the like terms

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Solve the system of linear equations below.
Reika [66]

Answer:

x = 1 , y = 3 thus: A is your Anser

Step-by-step explanation:

Solve the following system:

{2 x + y = 5 | (equation 1)

x + y = 4 | (equation 2)

Subtract 1/2 × (equation 1) from equation 2:

{2 x + y = 5 | (equation 1)

0 x+y/2 = 3/2 | (equation 2)

Multiply equation 2 by 2:

{2 x + y = 5 | (equation 1)

0 x+y = 3 | (equation 2)

Subtract equation 2 from equation 1:

{2 x+0 y = 2 | (equation 1)

0 x+y = 3 | (equation 2)

Divide equation 1 by 2:

{x+0 y = 1 | (equation 1)

0 x+y = 3 | (equation 2)

Collect results:

Answer:  {x = 1 , y = 3

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3 years ago
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Definition of inequality
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2 years ago
A certain triangle has a 30° angle and a 60° angle. Which must be a true
sleet_krkn [62]

Answer:

Step-by-step explanation:

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Which graph matches the equation ?
gulaghasi [49]

Answer:

Pretty sure it's the first one. It's the only one with the correct y-intercept and has a positive slope.

This is in fancy form, so you want to simplify it:

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y = 3/4x - 3

The first one matches.

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