Re-write with a common denominator, in this case 12:
Add:
10x - 4y = -4 -3x + 7y = -22 método de Cramer
1 answer:
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Re-write with a common denominator, in this case 12:
Add:
Answer:
Right part: where
Step-by-step explanation:
Linear equation have no solution if it is impossible for the equation to be true no matter what value we assign to the variable x.
The left part of the equation Tomas wrote is
The right part of the equation should be of the form
where
In this case, the equation will take look
Since this equality is always false.
Remark: 1) If a=8, the equation is equivalent to the equation
and the lest equation has infinitely many solutions.
2) When coefficient at x differs from the equation has unique solution.