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Mathematics
Kyra Sweeney
20 February, 22:09
3 (8X-5) = - 4 (7-6X)
Solve for X
+3
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Haven Knox
20 February, 22:37
0
3 (8X-5) = - 4 (7-6X)
3*8X - 3*5 = - 4*7 - 4 * (-6X)
24X - 15 = - 28 + 24X
24X - 24X = - 28 + 15
0 = - 13
Contradiction! Do not correspond to the number of equations!
Solve linear equation as follows:
- Unknown move to one side of the equation, and the numbers on the other side of the equation,
- Multiply or divide both sides by a value in order to get the number of the unknown x,
- The transfer number or unknown to the other side of the equation, change the sign to the opposite.
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Gracelyn Keith
20 February, 22:59
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3 (8X - 5) = - 4 (7 - 6X)
First, you have to eliminate the parentheses, so you can see what you've got.
On the left side, 3 (8X - 5) is the same thing as 24X - 15.
On the right side, - 4 (7 - 6X) is the same thing as - 28 + 24X.
So, now the equation is 24X - 15 = - 28 + 24X much easier to work with.
Let's cut to the chase here. Subtract 24X from each side:
-15 = - 28
There is no value for 'X' that can make this a true statement,
so the original equation has no solution.
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