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Bond [772]
3 years ago
11

Which numbers are solutions of the equation?|5 – 4x| – 3 = 4

Mathematics
1 answer:
laiz [17]3 years ago
3 0
|5-4x|-3=4\ \ \ /+3\\\\|5-4x|=7\iff5-4x=7\ \vee\ 5-4x=-7\\\\-4x=7-5\ \vee\ -4x=-7-5\\\\-4x=2\ /:(-4)\ \vee\ -4x=-12\ /:(-4)\\\\x=-\frac{2}{4}\ \vee\ x=\frac{-12}{-4}\\\\x=\frac{1}{2}\ \vee\ x=3
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Answer:

Step-by-step explanation:

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6 0
3 years ago
2x = 4y + 8, x - 2y = 4
Evgen [1.6K]

Answer: x = 8, y = 2, coordinates (8,2)

Step-by-step explanation:

2x = 4y + 8 (divide by 2 to get value of x)

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3 0
3 years ago
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dmitriy555 [2]

Answer:

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