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(I WILL GIVE BRAINLIEST)Solve the system of equations by the addition method.

I WILL GIVE BRAINLIESTSolve The System Of Equations By The Addition Method class=

Sagot :

Gwendoline05idn

Answer:

x = -27/2 , y = 9/2

Step-by-step explanation:

x/5 - y/15 = -3 ....... equation (1)

x/3 + y/9 = -4 ...... equation (2)

Substitute x = -15 + y/3

(-15+y/3)/3 + y/9 = -4

Simplify,

(-45+2y)/9 = -4

Isolate y for (-45+2y)/9 = -4

y = 9/2

Substitute y = 9/2

x = -15 + (9/2)/3

x = -27/2

x = -27/2 , y = 9/2

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