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

Question

Mathematics

Stephanie Hughes

29 December, 13:24

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

+1

Answers (1)

Know the Answer?

Puffy · Answer 1

- 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

In which line is a mistake first made when solving the following system of equations by elimination for x? 5x + 3y = 12 4x - 5y = 17Line 125x + 15y = 604x - 5y = 17Line 225x + 15y = 6020x - 15y = 85Line 345x = 145Line 4x = 29/9

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