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MathematicsMathematics
19 November, 19:44

To solve this system of equations using the combination method, what could you multiply each equation by to cancel out the x-variable?

A: 5x-2y=10

B: 4x+3y=7

Question 1 options:

Multiply A by - 4 and B by 5

Multiply A by 4 and B by 3

Multiply A by - 3 and B by 2

Multiply A by 3 and B by 2

+3
Answers (1)
  1. 19 November, 23:04
    0
    Since you want to cancel x-terms, you're only concerned with the x-term coefficients, 5 and 4. You will want to use the opposite of one of these. It usually works well to multiply the equation with the least y-coefficient by the negative multiplier. That is ...

    Multiply A by - 4 and B by 5.
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