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3 years ago

I need help solving 7-3x=x-2(2+x)

Mathematics

1 answer:

mrs_skeptik [129]3 years ago

4 0

Answer:

x = 5.5

Step-by-step explanation:

First, you need to distribute the -2:

-2(2+x) = -2x-4

Next you simplify:

x-2x = -x

Then you get all the x values on one side of the equation and everything else on the other side:

7-3x = -x-4 --> 11 = 2x

Finally, you isolate the x by dividing:

2x = 11 --> x = 5.5

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3 years ago

Use the distributive property to simplify the expression.

zepelin [54]

Option D

Using the distributive property, -7(8x – 3) + x = -55x + 21

Solution:

Given that we have to use distributive property to simplify the given expression

Given expression is:

-7(8x – 3) + x

Let us first understand about distributive property

The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.

The distributive property is represented as:

a(b + c) = ab + ac

Apply this property in given expression for -7(8x - 3)

$-7(8x - 3) = (- 7 \times 8x) + (-7 \times -3)\\\\-7(8x - 3) = -56x +21$

Apply the above result in given expression

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Combine the like terms. Add -56x and x

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