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2 years ago

8x+9y=-28 -4x=y solve the system by subsitution

Mathematics

2 answers:

bixtya [17]2 years ago

8 0

Answer:

x= 1

y = -4

Step-by-step explanation:

8x + 9y = -28

-4x = y

8x + 9(-4x) = -28

8x - 36x = -28

-28x = - 28

x = 1

y = -4(1) = -4

Zielflug [23.3K]2 years ago

6 0

Answer:

Step-by-step explanation:

8 + 9 = 17

17y = 28

28 / 17 = 1.64

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grandymaker [24]

Answer:

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Step-by-step explanation:

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3 years ago

Express x in terms of the other variables in the diagram below:

GrogVix [38]

For the answer to the question above, just use similar triangles.
Here's the equations that I used.

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3 years ago

Read 2 more answers

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vivado [14]

Answer:

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Step-by-step explanation:

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2 years ago

URGENT ! HELP ! Question is in photo below.

kifflom [539]

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The above step is the result of using "Subtraction property of equality"

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Above step is result of "Combining the like terms"

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Above step is the result of using "Division property of equality"

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3 years ago

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3 years ago