Jawab:
Penjelasan dengan langkah-langkah:
15. )
2(3x+5)-2(7x-3)=2x+6
6x+10-14x+6=2x+6
-8x+16=2x+6
16-6=2x+8x
10=10x
1=x
16.)
(m+7) / 2= (m+9) / 4
(m+7) = (m+9) / 2
2(m+7)= m+9
2m+14= m+9
2m-m=9-14
m=-5
17.)
2/3(4x-5)=3/4(2x+2)+1
8/3x-10/3=6/4x+6/4+1
8/3x-10/3=6/4x+5/2
8/3x-6/4x=5/2+10/3
7/6x = 35/6
7x=35
x=5
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Jawab:
Penjelasan dengan langkah-langkah:
Jawab:
Penjelasan dengan langkah-langkah:
15. )
2(3x+5)-2(7x-3)=2x+6
6x+10-14x+6=2x+6
-8x+16=2x+6
16-6=2x+8x
10=10x
1=x
16.)
(m+7) / 2= (m+9) / 4
(m+7) = (m+9) / 2
2(m+7)= m+9
2m+14= m+9
2m-m=9-14
m=-5
17.)
2/3(4x-5)=3/4(2x+2)+1
8/3x-10/3=6/4x+6/4+1
8/3x-10/3=6/4x+5/2
8/3x-6/4x=5/2+10/3
7/6x = 35/6
7x=35
x=5