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In Mathematics / Middle School | 2014-03-12

Substiution method: y + 9 = 1/5x and
45 - 3y = -15x
Please show work thank you very much.

Asked by grantmiller303

Answer (2)

y+9=1/5x menjadi y= 1/5x -9 sesudah ini sibtusika n dalam persamaan 4x - 5y = -15x 4x -5(1/5x-9)= -15 x 4x + x+45=-15x 5x +45 = -15x 45=-20x x=-45/20 x= -9/4
y+9 =1/5x y = 1/5(-9/4)-9 y = -189/20 (- 9/4,-189/20)

Answered by ainulkarim | 2024-06-10

Using the substitution method, we solve for x and y from the equations y + 9 = 1/5x and 45 - 3y = -15x. The solution we found is x = -5 and y = -10. Thus, the solution to the system is (-5, -10).
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Answered by ainulkarim | 2024-12-23

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