Jawaban:
9x + 45 = 180
9x = 135
x = 15
9x = 15y
135 = 15y
y = 9
45 + 9x = 180
9x = 180 - 45
x = 135 ÷ 9
45 + 15y = 180
15y = 180 - 45
15y = 135
y = 135 ÷ 15
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Jawaban:
9x + 45 = 180
9x = 135
x = 15
9x = 15y
135 = 15y
y = 9
Jawaban:
45 + 9x = 180
9x = 180 - 45
9x = 135
x = 135 ÷ 9
x = 15
45 + 15y = 180
15y = 180 - 45
15y = 135
y = 135 ÷ 15
y = 9