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lozanna [386]
3 years ago
13

Find the value of x: 3(6x - 4x) = -30 (Provide Step-By-Step)

Mathematics
2 answers:
Olegator [25]3 years ago
5 0

Answer:

x = -5

Step-by-step explanation:

Multiply 3 by (6x - 4x) = 18x - 12x

18x - 12x = -30

6x = -30

x = -30 /6

x = -5

iogann1982 [59]3 years ago
3 0

Answer:

X=-5

Step-by-step explanation:

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we have

x^{2}-8x=3

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x^{2}-8x+16=3+16

x^{2}-8x+16=19

Rewrite as perfect squares

(x-4)^{2}=19

(x-4)^{2}=19\\ (x-4)=(+/-)\sqrt{19} \\ \\ x1=4+\sqrt{19} =8.359\\ x2=4-\sqrt{19} =-0.359

therefore

the answer is

x1=4+\sqrt{19} =8.359\\x2=4-\sqrt{19} =-0.359

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x^2=y+3

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f^{-1} (x)=x^{2} -3

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