1. Tentukan penyelesaian
a. 2x+8 = 6
b. 4x-16=8
c.4x+7-7=17
d. 10 -⅖x-12=4![]()
a. 2x+8 = 6
b. 4x-16=8
c.4x+7-7=17
d. 10 -⅖x-12=4
Jawaban:
a. 2x=-2
x=-1
b. 4x=24
x=6
c. 4x=17
x=17/4 atau dalam desimal 4.25
Penjelasan dengan langkah-langkah:
a.
2x+8=6
2x = 6-8
2x = -2
x = -1
b.
4x-16=8
4x = 16 + 8
4x = 24
x = 6
c.
4x+7-7=17
4x=17
x=17/4
d.
10 -2/5x-12=4
-2/5x = 4 + 12 - 10
-2/5x = 6
2/5x = -6
x = -6 . 5/2
x = -15
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