please help with steps

15. Verify each student's work. If the solution is incorrect, write a correct and complete solution. a) Student A: 2.2x = 7.6x + 27 2.2x - 7.6x = 7.6x + 27-7.6x -5.4x = 27 -5.4x _ 27 -5.4 -5.4 X = 5 b) Student B: -2.3x - 2.7 = 2.2x + 11.7 -2.3x - 2.7+ 2.2x = 2.2x +11.7+ 2.2x -0. 1x - 2.7 = 11.7 -0. 1x - 2.7+ 2.7 = 11.7+2.7 -0. 1x = 14.4 -0. 1x _ 14.4 - 0. 1 -0.1 X = -144 16. a) Solve each pair of equations. x = 3; x 27 = 3, x # 0 27 a = 12; a ii) 36 36 = 12, a # 0 b) How are the steps to solve for a variable in the denominator of a fraction similar to the steps used to solve for a variable in the numerator? How are they different? Explain. 17. Solve each equation. Verify the solution. a) 4(g + 5) = 5(8 - 3) b) 3( 4 j + 5 ) = 2(- 10 + 5j) c) 2.2(h - 5.3) = 0.2(-32.9 + h) d) 0.04(5 - s) = 0.05(6 - s)