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-3x-\left(-4\right)-10\left(\frac{x}{5}+1\right)
To find the opposite of 3x-4, find the opposite of each term.
-3x+4-10\left(\frac{x}{5}+1\right)
The opposite of -4 is 4.
-3x+4-10\left(\frac{x}{5}+\frac{5}{5}\right)
To add or subtract expressions, expand them to make their denominators the same. Multiply 1 times \frac{5}{5}.
-3x+4-10\times \frac{x+5}{5}
Since \frac{x}{5} and \frac{5}{5} have the same denominator, add them by adding their numerators.
-3x+4-2\left(x+5\right)
Cancel out 5, the greatest common factor in 10 and 5.
-3x+4-2x-10
Use the distributive property to multiply -2 by x+5.
-5x+4-10
Combine -3x and -2x to get -5x.
-5x-6
Subtract 10 from 4 to get -6.
-3x-\left(-4\right)-10\left(\frac{x}{5}+1\right)
To find the opposite of 3x-4, find the opposite of each term.
-3x+4-10\left(\frac{x}{5}+1\right)
The opposite of -4 is 4.
-3x+4-10\left(\frac{x}{5}+\frac{5}{5}\right)
To add or subtract expressions, expand them to make their denominators the same. Multiply 1 times \frac{5}{5}.
-3x+4-10\times \frac{x+5}{5}
Since \frac{x}{5} and \frac{5}{5} have the same denominator, add them by adding their numerators.
-3x+4-2\left(x+5\right)
Cancel out 5, the greatest common factor in 10 and 5.
-3x+4-2x-10
Use the distributive property to multiply -2 by x+5.
-5x+4-10
Combine -3x and -2x to get -5x.
-5x-6
Subtract 10 from 4 to get -6.