3 years ago

What is the solution of |2x| = –4?

Mathematics

1 answer:

DENIUS [597]3 years ago

7 0

-2x=-4 or x=2
2x =-4 or x=-2

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What does pie equal if its equal

katen-ka-za [31]

Trick question Pie can never be equal Pie is Unlimted

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2 years ago

If you add 21 to my number and then multiply the result by 3, you will get 84 more than two-thirds of my number. Find my number.

Ksivusya [100]

Based on the calculations, the unknown number is equal to $\frac{-45}{7}$

Let the unknown number be x.

<h3>How to find an unknown number:</h3>

Translate the word problem into an algebraic expression, we have;

Adding 21 to the unknown number:

$21 +x$

Multiplying the result by 3:

$3\times (21+x)$

84 more than two-thirds of the unknown number:

$\frac{2x}{3} +84$

Equating the equations, we have:

$3\times (21+x) = \frac{2x}{3} +84\\\\43+3x=\frac{2x}{3} +84$

Cross-multiplying, we have:

$43+3x=\frac{2x}{3} +84\\\\129+9x=2x+84\\\\9x-2x=84-129\\\\7x=-45\\\\x=\frac{-45}{7}$

Read more on word problems here: brainly.com/question/13170908

5 0

2 years ago

Please help me. Solve by using substitution.

juin [17]

Answer:

y=-3x+3..........(1)

6x+2y=6

putting value of y

6x+2(-3x+3)=6

6x-6x+6=6

o=0

sorry I do not get answer

6 0

2 years ago

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a recipe that make 10 mini loaves of banana bread calls for 1 1/4 cups flour . how much flour is needed to make 2 dozens mini lo

asambeis [7]

Answer:

0.25 or 1/4

Step-by-step explanation:

2 x 1 1/4 = 2 x 1.25 = 2.5 or 2 1/2

2.5 divided by 10 = 1/4 or 0.25

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2 years ago

Simply this equation

DaniilM [7]

12÷ 3( -8+16-6) +2
12÷3(2<span>)+12
12</span><span>÷6+12
</span>2+12+14
so 14 is your answer

5 0

3 years ago

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