Answer:
1.1150
Explanation:
x(86.90) = 96.90
86.90x = 96.90
86.90x/86.90 = 96.90/86.90
x = 1.120
x (85 + 1.90) = 96.90
Add
x (86.90) = 96.90
Divide 86.90 to both sides
x = 96.90 / 86.90
x = 1.12
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