DIketahui sistem persamaan x-5y=-37 dan 3x+2y=8 nilai 6x+4y adalah?
a.-30
b-16
c.16
d.30
TOLONG JAWAB PAKE CARA
a.-30
b-16
c.16
d.30
TOLONG JAWAB PAKE CARA
dyunitapuspa
X-5y=-37|×3| 3x-15y=-111 3x+2y=8|×1| 3x+2y= 8 _____________ - -17y = -119 y= 7 Subtisusi ke pers (1) -> x-5y =-37 x-5(7)= -37 x = -37+35 =-2 Jadi, nilai 6x+4y =6(-2)+4(7)= -12+28 =16 (c)
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