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3 years ago

4(x+3)-(2x-1)=30+7x-1+5x

Mathematics

2 answers:

denis23 [38]3 years ago

8 0

x= -8/5

x equals negative 8 over 5

aivan3 [116]3 years ago

8 0

4(x+3)-(2x-1)=30+7x-1+5x

distribute

4x+12 -2x+1 =30 +7x-1+5x

combine like terms

2x+13 = 29+12x

subtract 2x from each side

13 =29+10x

subtract 29 from each side

-16= 10 x

divide by 10

-1.6 =x

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3 years ago

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3 years ago

What is this answer?

amm1812

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Graph 1:

Option B

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NOT Option A

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3 years ago

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Gnoma [55]

Answer:

Equation: $20=4x$ or $x=\frac{20}{4}$

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Step-by-step explanation:

The formula that is used to calculate the perimeter of a square is:

$P=4s$

Where "s" is the side lenght the square.

Knowing that Xin used 20 yards of fencing to build the walls of a square chicken coop (in which the lenght in yards of each wall is represented with "x"), you can identify that:

$P=20\\\\s=x$

Then, you can susbtitute values into the formula $P=4s$ :

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Finally, you must solve for "x" in order to find its value.

This is:

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