Graph each system and determine the number of solutions that it has. if there is no solution, type ns. if it has a solution, state it. when entering solutions, enter them as a coordinate pair. do not include spaces in answers. 2x−y=1 ,y=−3
number of solutions: answer solution:
answer

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.