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In which line is a mistake first made when solving the following system of equations by elimination for x? 5x + 3y = 12 4x - 5y = 17 Line 1 25x + 15y = 60 4x - 5y = 17 Line 2 25x + 15y = 60 20x - 15y =
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2 votes
In which line is a mistake first made when solving the following system of equations by elimination for x? 5x + 3y = 12 4x - 5y = 17

Line 1
25x + 15y = 60
4x - 5y = 17

Line 2
25x + 15y = 60
20x - 15y = 85

Line 3
45x = 145

Line 4
x = 29/9

User Shimon Rachlenko
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1 Answer

6 votes
- in the second line bc. the second equation we need multiplie just by 3 and ot by 5
- so there above was multiplied by 5 and so than 5*(-5y) not equal -15y so this is equal -25y
User Siddharth Prajosh
by
8.5k points
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