beetric
beetric
25-08-2017
Mathematics
contestada
3x - 13 = 7(x+2) - 4(x-7)
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Dom991
Dom991
25-08-2017
7x+14-4x+28. 3x+42. 3x-13=3x+42. Not equal x is 0
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BBBdonuts
BBBdonuts
25-08-2017
You use PEMDAS (Parenthesis, exponent, multiplying or dividing, addition or subtraction)
3x - 13 = 7(x+2) - 4(x-7)
3x - 13 = 7x + 14 - 4x + 28
3x - 13 = 3x + 42
-13 = 42 <--- Not True
There is no solution since the left and right sides aren't equal
Answer Link
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