find two number whose sum is 138 and difference is 88
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Let the numbers be X and y
X + y = 138
X = 138 - y
X - y = 88
X = 88 + y
138 - y = 88 + y
138 - 88 = y + y
50 = 2y
y = 50 ÷ 2
y = 25
X + 25 = 138
X = 138 - 25
X = 113
Therefore, the numbers are 113 and 25.
X + y = 138
X = 138 - y
X - y = 88
X = 88 + y
138 - y = 88 + y
138 - 88 = y + y
50 = 2y
y = 50 ÷ 2
y = 25
X + 25 = 138
X = 138 - 25
X = 113
Therefore, the numbers are 113 and 25.
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