hahaiwannadie hahaiwannadie

18-02-2019
Mathematics

contestada

3x + 2y = A
5x + y = B
Eliminating the variable y from the system of equations results in -7x =

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sqdancefan sqdancefan

19-02-2019

Answer:

A-2B

Step-by-step explanation:

Multiply the second equation by -2 and add the first equation.

-2(5x +y) +(3x +2y) = -2(B) +(A)

-10x -2y +3x +2y = -2B +A . . . . . . eliminate parentheses

-7x = A -2B . . . . . . . collect terms

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