Easy will give : ) given the equation 5 + x - 12 = x - 7. part a. solve the equation 5 + x - 12 = x - 7. in your final answer, be sure to state the solution and include all of your work. part b. use the values x = -4, 0, 5 to prove your solution to the equation 5 + x - 12 = x - 7. in your final answer, include all of your calculations

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Dexter read 11 science fiction books and 5 history books. lena read 9 science fiction books and 4 history books. compare the students’ ratios of science fiction books to history books. 1. determine the ratios’ form:    science fiction books to history books 2. write the ratios as fractions:    dexter: 115; lena: 94 3. rewrite with a common denominator. 4. compare. 5. answer the question. determine which shows the correct comparison of the ratios for this problem.

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.