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stepan [7]
3 years ago
14

Does anyone know how to solve 81 increased to 90?

Mathematics
2 answers:
statuscvo [17]3 years ago
7 0
89+90=171. keep in mind that increased or increased by means to add
earnstyle [38]3 years ago
5 0
That seems an odd way of wording the question. Do you mean 81+x=90? In other words, what number can you add to 81 to get 90. You can also switch it around so 90-81=x.

81+x=90
x=90-81
x=9
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