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X = 120 - 32
X= 88
b.- X : 4 = 26
X= 26 * 4
X = 104
c.- 3x = 45
X = 45 : 3
X= 15
d.- X : 8 = 23
X = 23 * 8
X = 184
e.- X + 73 = 115
X = 115 - 73
X = 42