Use Cramers Method to solve c + p = 13 and 2c + 4p = 40
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Use Cramers method to solve:
c + p = 13
2c + 4p = 40
Check Format
Equation 1 is in the correct format.
Check Format
Equation 2 is in the correct format.
Set up standards equations
Standard equation 1 = ax + by = c and Standard equation 2 = dx + ey = f.
Find a, b, c in ax + by = c
c + p = 13
a = 1, b = 1, c = 13
Find d, e, f in dx + ey = f
2c + 4p = 40
d = 2, e = 4, f = 40
Step 1, calculate Delta (Δ):
Δ = a * e - b * d
Δ = (1 * 4) - (1 * 2)
Δ = 4 - 2
Δ = 2
Step 2, calculate the numerator for c
Numerator(c) = c * e - b * f
Numerator(c) = (13 * 4) - (1 * 40)
Numerator(c) = 52 - 40
Numerator(c) = 12
Step 3, calculate the numerator for p
Numerator(p) = a * f - c * d
Numerator(p) = (1 * 40) - (13 * 2)
Numerator(p) = 40 - 26
Numerator(p) = 14
Evaluate and solve:
c =
Numerator(c)
Δ
c =
12
2
c = 6
You have 2 free calculationss remaining
p =
Numerator(p)
Δ
p =
14
2
p = 7
You have 2 free calculationss remaining
What is the Answer?
p = 7
How does the Simultaneous Equations Calculator work?
Free Simultaneous Equations Calculator - Solves a system of simultaneous equations with 2 unknowns using the following 3 methods: 1) Substitution Method (Direct Substitution) 2) Elimination Method 3) Cramers Method or Cramers Rule
Pick any 3 of the methods to solve the systems of equations
2 equations 2 unknowns This calculator has 2 inputs.
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