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Do not use x which is a letter, so a variable, but the symbol * or the multiplication cross ×, nothing else.

Example: \( x*2=10 \iff x=5 \)

Indicate the variable with a letter (like x or y, do not use ?) and note it as unknown, the solver will give the subtraction result either in the form of integer, of fraction, or in numerical form.

How to solve a system with multiple multiplications?

Indicate several lines of multiplications with the same variable(s). Or, separate the multiplications with the AND logical operator: &&.

How to read a multiplication?

The sign of multiplication can be read times or 'multiplied', it is sometimes implied and therefore omitted.

Example: 5y for 5 times y

Source code

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