Jawab:
41. 2(3x-5)= -4(x-8)+8
k+10=?
jawab: 2 X 3x+ 2 X -5= -4 X x+ -4 X-8 +8
= 6x -10 = -4x +32+8
= 6x + 4x = 10+ 32+ 8
= 10x = 50
x= 50/10= 5
k+10= 5+10
15(B)
42.Karena panjang diagonal sama
Jadi,
3x+15=5x+5
3x-5x=5-15
-2x=-10
x=5
Jadi panjang diagonal=5x+5=5(5)+5=25+5=30 meter(C)
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maka
5x+5 = 3x+15
5x -3x = 15-5
2x = 10
x = 10/2 = 5
maka diagonalnya
⏺5x+5 = 5.5. +5 = 30 (C)
⏺3x+15 = 2.5 +15 = 30
Jawab:
41. 2(3x-5)= -4(x-8)+8
k+10=?
jawab: 2 X 3x+ 2 X -5= -4 X x+ -4 X-8 +8
= 6x -10 = -4x +32+8
= 6x + 4x = 10+ 32+ 8
= 10x = 50
x= 50/10= 5
k+10= 5+10
15(B)
42.Karena panjang diagonal sama
Jadi,
3x+15=5x+5
3x-5x=5-15
-2x=-10
x=5
Jadi panjang diagonal=5x+5=5(5)+5=25+5=30 meter(C)