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Nuetrik [128]
2 years ago
10

3x-13=8 find the value of x-4

Mathematics
1 answer:
kolbaska11 [484]2 years ago
3 0

3x - 13 = 8

<em><u>Add 13 to both sides.</u></em>

3x = 21

<em><u>Divide both sides by 3.</u></em>

x = 7

Now that we have the value of x we can solve x - 4.

7 - 4 = 3

The value of x is 7, and the answer to the second expression is 3.

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Answer:

1

Use the quadratic formula

=

−

±

2

−

4

√

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

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2

+

5

−

2

=

0

x^{2}+5x-2=0

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a={\color{#c92786}{1}}

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5

b={\color{#e8710a}{5}}

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2

c={\color{#129eaf}{-2}}

c=−2

=

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5

±

5

2

−

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⋅

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(

−

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Step-by-step explanation:

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