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Vitek1552 [10]
3 years ago
7

What is 8 to the second power open parentheses 3x - 2 closed parentheses + 5 = 56. solve for x

Mathematics
1 answer:
Ratling [72]3 years ago
8 0
8² (3x -2) + 5 = 56  I do the exponents first
64 (3x -2) + 5 = 56  I distribute the 64 over the 3x-2
192x - 128 + 5 = 56 I combined liked terms  (-128+5)
192x -123 = 56  I add 123 to both side
192x - 123 +123= 56 + 123  Finally I divide both sides by 192
<u>192x</u> = <u>179
</u>192       192

x = \frac{179}{192}

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