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3 years ago

2(3x -1) +2(4x + 5) = 8 what's the answer and how do you solve this ?

Mathematics

2 answers:

serious [3.7K]3 years ago

7 0

2(3x - 1) + 2(4x + 5) = 8

Distribute the 2's inside their respective parentheses.

6x - 2 + 8x + 10 = 8

Combine like terms (6x + 8x) and (-2 + 10).

14x + 8 = 8

Subtract 8 from both sides.

14x = 0

Divide both sides by 14.

$\boxed {x=0}$

Mila [183]3 years ago

6 0

6x-2+8x+10=8

14x+8=8

14x=0

x=0

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3 years ago

Divide £88 between Bill and Sam. If Sam gets

Lynna [10]

<h3>Answer: £66</h3>

Your teacher may want you to leave off the pounds sign.

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Explanation:

x = amount Bill gets

3x = amount Sam gets, because he gets three times as much

x+3x = 4x = total amount of money

4x = 88

x = 88/4

x = 22

Bill gets £22

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3 years ago

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3 years ago

One angle is 25 less than four times it's supplement. What is the measure of both angles?

Elenna [48]

Let the first angle be x and the second be y.

Supplementary angles add up to 180, so:
x + y = 180

Also, as given in the statement:
x = 4y - 25

Substituting into the first equation:
4y - 25 + y = 180
5y = 205
y = 41

x = 4(41) - 25
x = 139

One angle is 139° and the other is 41°.

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3 years ago