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melamori03 [73]
3 years ago
13

Please give me a hand

Mathematics
2 answers:
nlexa [21]3 years ago
5 0

Answer:

x=5? im not really sure what the question is its all fuzzy

Step-by-step explanation:

vlada-n [284]3 years ago
5 0

Your answer is x = 9.

To solve this equation we just need to expand the brackets and then rearrange the equation to have x on one side and the numbers on the other:

2(x + 5) - 7 = 3(x - 2)

2x + 10 - 7 = 3x - 6

2x + 3 = 3x - 6

- 2x

3 = x - 6

+ 6

9 = x

I hope this helps!

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Solve for x in the equation 2x^2+3x-7=x^2+5x+39
miv72 [106K]
Subtract x^2 from both sides
x^2 + 3x - 7 = 5x + 39
Subtract 5x from both sides
x^2 - 2x - 7 = 39
Add 7 to both sides
x^2 - 2x = 46
Complete the square by adding (b/2)^2 to both sides, b = ( -2)
(-2/2) = -1, then square that (-1)^2 = 1
x^2 - 2x + 1 = 46 + 1
Simplify the expression by factoring
(x - 1)^2 = 47
Take square root on each side
x - 1 = (sqrt (47))
Solve for x
x = 1 + (sqrt (47))
Since 47 is prime, 47 cannot be broken down by the square root and this is the answer to your problem.

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