Which of the following represents the solution to the inequality 2 | 5 - 2x | - 3 ≤ 15 a. (-∞,-2) u (7,∞) b. (-∞,1.5) u (7.5,∞) c. [-2,7] d. [1.5,7.5]

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.