2x+4y=12 x+y=2 what is the substitution method for this system of equations

x = -2, y = 4

Step-by-step explanation:

Minus y from both sides of x+y=2

x=−y+2

substitute x in 2(−y+2)+4y=12

2y+4+−4=12+−4

2y=8

divide 2 from both sides

y = 4

substitute y in x+-4+2

x = -4 + 2

x = -2

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