A(0,-1,1) B(4,1,1) mặt phẳng trung trực của đoạn AB

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.

What is not true about kl and mn? what is mn? (show )

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827