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slega [8]
2 years ago
11

2(x-3)=12 Can someone please solve this step by step

Mathematics
2 answers:
attashe74 [19]2 years ago
8 0

Answer:

X=3

Step-by-step explanation:

FOIL

2X-6=12

    -6=-6

2X=6

_=_

2   2

Jlenok [28]2 years ago
5 0

Answer:

x=9

Step-by-step explanation:

2(x-3)=12

First you use the distributive property

so you do 2 times x then 2 times -3

rewrite it as 2x-6=12

add 6 on both sides

2x=18

divide 2 from both sides and you get x=9

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Answer:

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5(x^2+4x+4)=7+20

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Step-by-step explanation:

we have

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step 1

Group terms that contain the same variable, and move the constant to the opposite side of the equation

5x^2+20x=7

step 2

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step 3

Complete the square

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step 4

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step 5

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(x+2)=\pm\frac{3\sqrt{15}}{5}

step 6

x=-2\pm\frac{3\sqrt{15}}{5}

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