tolong jawab please 1. 2y=x-15 2.y=2/3x+7 PLEASE jawab
Matematika
ena36
Pertanyaan
tolong jawab please 1. 2y=x-15 2.y=2/3x+7 PLEASE jawab
1 Jawaban
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1. Jawaban LouiseTantri2008
y=2/3x+7
2y=x-15
2(2/3x+7)=x-15
4/3x+14 =x-15
4/3x-x=-15-14
4/3x-3/3x = -15-14
1/3x = -29
x = -29 ÷ 1/3
x = -29 × 3/1
x = -87
y=2/3x+7
y=2/3(-87)+7
y= -174/3 + 7
y= -58+7
y = -51
x = -87
y = -51
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