What value of w makes 19 – (–10) = w a true sentence?

What is the equation and solution for the sentence? the sum of a number and thirty-one is one hundred thirteen. write the equation as n-31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and subtract 31 from both sides. the answer is 82. write the equation as n+31=113 and add 31 to both sides. the answer is 144. write the equation as n-31=113 and add 31 to both sides. the answer is 144.

In trapezoid efgh, m∠gfe=63∘. identify m∠ghe. !

How many solutions does the nonlinear system of equations graphed bellow have?