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How many solutions does each system have? System I: 4x+3y=-1 12x+9x=21 System II: 5x+2y=-7 15x+6y=21

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Answer:

Explanation:

System I: This system has one solution. To solve, you would need to first solve for one of the variables, say x. Then, substitute the value of x into the other equation to solve for y.

System II: This system has an infinite number of solutions. To solve, you would need to first solve for one of the variables, say x. Then, substitute the value of x into the other equation to solve for y. Since both equations are linear, they will have an infinite number of solutions.

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