Move the negative in front of the fraction.
Move all terms not containing z to the right side of the equation.
Add 13 to both sides of the equation.
Add -2 and 13.
Multiply both sides of the equation by -7.
Simplify both sides of the equation.
Cancel the common factor of 7.
Move the leading negative in -z7 into the numerator.
Factor 7 out of -7.
Cancel the common factor.
Rewrite the expression.
Multiply -1 by -1.
Multiply z by 1.
Multiply -7 by 11.
Solve for z z/-7-13=-2