Solving Linear Systems by Substitution Answers

Solving the equation 2x + 3(3x – 5) = 51for x gives x = .

6x – 2y = 102x + 3y = 51Solving the first equation above for y gives: y = ⇒ 3x – 5

Which choice shows the result of substituting 3x – 5 into the second equation for y?

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Marta tried solve the system below, but she made a mistake. Read carefully and try to figure out what her mistake was.

5x - 2y = 152x + 4y = 12According to the strategy you learned in this lesson, what is the best first step in solving the system of equations above using substitution?

Solve the system of equations using substitution. 4x – y = 73y – 12x = –21

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).

(0, 3)(6, 0)