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Whitepunk [10]
3 years ago
10

WHAT IS THE SOLUTION TO 2X+3=X-4

Mathematics
2 answers:
noname [10]3 years ago
8 0

Answer:

x=7

Step-by-step explanation:

=2x+3=x-4

add four to both sides

=2x+3+4=x

Subtract 2x from both sides

=3+4=x-2x

Combine like terms

=7=-x

Flip

=-x=7

Divide both sides by -1

=x=7

So therefore x=7

Stels [109]3 years ago
3 0

Answer:

x= -7

Step-by-step explanation:

2x+3=x−4

Step 1: Subtract x from both sides.

2x+3−x=x−4−x

x+3=−4

Step 2: Subtract 3 from both sides.

x+3−3=−4−3

x=−7

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3 years ago
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tankabanditka [31]

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5 0
2 years ago
In 2011, a U.S. Census report determined that 71% of college students work. A researcher thinks this percentage has changed sinc
coldgirl [10]

Answer:

Note: The full question is attached as picture below

a) Hо : p = 0.71

Ha : p ≠ 0.71

<em>p </em>= x / n

<em>p </em>= 91/110

<em>p </em>= 0.83.

1 - Pо = 1 - 0.71 = 0.29.

b) Test statistic = z

= <em>p </em>- Pо / [√Pо * (1 - Pо ) / n]

= 0.83 - 0.71 / [√(0.71 * 0.29) / 110]

= 0.12 / 0.043265

= 2.77360453

Test statistic = 2.77

c) P-value

P(z > 2.77) = 2 * [1 - P(z < 2.77)] = 2 * 0.0028

P-value = 0.0056

∝ = 0.01

P-value < ∝

Reject the null hypothesis.  There is sufficient evidence to support the researchers claim at the 1% significance level.

6 0
3 years ago
This equation will be in standard form if you subtract 2x2 from both sides and subtract 8x from both sides.
Lady_Fox [76]

i looked it up and it is false

6 0
3 years ago
Read 2 more answers
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rjkz [21]

Answer:

hey there!!!

Step-by-step explanation:

i think the best option is acute and isosceles from my view

hope it helps you...

4 0
3 years ago
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