If the vertices of a science classroom are located at (−3 x 1 , y 1 ) -3x1,y1 , (−3 x 2 , y 2 ) -3x2,y2 , (−3 x 3 , y 3 ) -3x3,y3 , and (−3 x 4 , y 4 ) -3x4,y4 , will the science classroom be congruent to the math classroom?

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.