Finite Math Examples

Solve by Substitution 2x*1-2x*2+5x*3=-15 , 4x*1+20x*2-54x*3=74 , x*1+3x*2-8x*3=10
, ,
Step 1
Divide each term in by and simplify.
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Step 1.1
Divide each term in by .
Step 1.2
Simplify the left side.
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Step 1.2.1
Cancel the common factor of .
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Step 1.2.1.1
Cancel the common factor.
Step 1.2.1.2
Divide by .
Step 1.3
Simplify the right side.
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Step 1.3.1
Move the negative in front of the fraction.
Step 2
Replace all occurrences of with in each equation.
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Step 2.1
Replace all occurrences of in with .
Step 2.2
Simplify the left side.
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Step 2.2.1
Multiply .
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Step 2.2.1.1
Multiply by .
Step 2.2.1.2
Combine and .
Step 2.2.1.3
Multiply by .
Step 2.3
Replace all occurrences of in with .
Step 2.4
Simplify the left side.
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Step 2.4.1
Multiply .
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Step 2.4.1.1
Multiply by .
Step 2.4.1.2
Combine and .
Step 2.4.1.3
Multiply by .
Step 3
Since is not true, there is no solution.
No solution
Step 4