Solve two simultaneous linear equations for a shared pair of values.
| Input | What it means |
|---|---|
| a1 | A value or coefficient in the formula above; keep the displayed position and sign. |
| b1 | A value or coefficient in the formula above; keep the displayed position and sign. |
| c1 | A value or coefficient in the formula above; keep the displayed position and sign. |
| a2 | A value or coefficient in the formula above; keep the displayed position and sign. |
| b2 | A value or coefficient in the formula above; keep the displayed position and sign. |
| c2 | A value or coefficient in the formula above; keep the displayed position and sign. |
| Precision of calculations | Requested number of output decimal places; this changes display rounding, not input accuracy. |
x+y=5 and x−y=1 give x=3 and y=2.
Solve for two linked unknowns and check them in both original equations.
Keep the original input precision through the calculation and round the final answer to the precision you need. Rounding an intermediate result can change later steps.
Check the operation, units, signs and rounding first. Equivalent fractions or expressions can look different while representing the same value.
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