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3 years ago

Simplify (7x + 2 + 8x

1 answer:

6 0

(7x + 2 + 8x^4) – (2x – 5 – 8x^4) + (3x + 5x^4)
= 7x + 2 + 8x^4 – 2x + 5 + 8x^4 + 3x + 5x^4
= 8x + 7 + 21x^4
= 21x^4 + 8x + 7

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Answer:

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Step-by-step explanation:

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4 years ago

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Step-by-step explanation:

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3 years ago

Read 2 more answers

Yanka [14]

The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"

<h3>System of equation</h3>

System of equation are made of two or more equations with unknowns

Given the system of equation

4x=5-2y

y-2x=7

From equation 2:

y = 7 + 2x

The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"

Learn more on system of equation here: brainly.com/question/14323743

#SPJ1

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