4 x - 3 y = 19 <
with the two unknown x and y can be solved by rearranging (1) to
y = (7 - 3 x) / 5
and substituting this expression for y in (2)
4 x - 3 ((7 - 3 x) / 5 ) = 19
- the value for x can then be calculated to
x = 4
By substituting this value for x in expression 1
3 4 + 5 y = 7
- the value for y can be calculated to
y = -1
The calculator below can be used to estimate x and y values for two equations with two unknowns.
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