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3 years ago

13= -2(x+1) + 7x solve for x

Mathematics

2 answers:

NARA [144]3 years ago

7 0

Step-by-step explanation:

13=-2x-2+7x

15=5x

x=3

please mark it as brainliast

Veronika [31]3 years ago

4 0

Answer:

x=3

Step-by-step explanation:

13= -2 (x+1) +7x (given)

13+-2x - 2 +7x (distributive property of multiplication over addition)

13 + 5x -2 (combine like terms)

15 = 5x (addition property of equality)

3 = x (division property of equality)

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3 years ago

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Helen [10]

Answer:

R1 - given

R2 - subtraction property of equality

R3 - distribution

S4 - 9x = 61

R5 - division prop. of equality

Step-by-step explanation:

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2 years ago

Which expression is a polynomial

patriot [66]

Answer:

$4x^3-2x^2+5x-6+\frac{1}{x}$ is a polynomial

Step-by-step explanation:

a polynomial is a set of numbers with multiple terms that are not simplify able

$9x^7y^{-3} z$ is not a polynomial because its actually one term, there is no addition/subtraction of different terms.

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13x^-2 is also a single number, not a polynomial

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2 years ago

Pls help asap!!! Find the area of the geometric figure.

Murrr4er [49]

Answer:

12.5 or 12 1/2

Step-by-step explanation:

Base = 8.5 yd

Height 3 yd

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A = 12.5

6 0

2 years ago

Read 2 more answers