Math Problem Statement

16b=6f c=b+4a d=b+2a e=4b+3a a=f f does not equal to a. If c=130 d=30, and e=134, what is a, b, and f

Solution

We are given the following system of equations:

  1. 16b=6f16b = 6f
  2. c=b+4ac = b + 4a
  3. d=b+2ad = b + 2a
  4. e=4b+3ae = 4b + 3a
  5. a=fa = f (but faf \neq a, so this equation is only helpful when considering the value of ff)
  6. c=130c = 130
  7. d=30d = 30
  8. e=134e = 134

Step 1: Use the known values for cc, dd, and ee

From equations (2), (3), and (4), we can substitute the known values.

  • c=b+4a=130c = b + 4a = 130 → Equation (2) gives: b+4a=130(Equation 2)b + 4a = 130 \quad \text{(Equation 2)}

  • d=b+2a=30d = b + 2a = 30 → Equation (3) gives: b+2a=30(Equation 3)b + 2a = 30 \quad \text{(Equation 3)}

  • e=4b+3a=134e = 4b + 3a = 134 → Equation (4) gives: 4b+3a=134(Equation 4)4b + 3a = 134 \quad \text{(Equation 4)}

Step 2: Solve the system of equations

We have the system:

b+4a=130(Equation 2)b + 4a = 130 \quad \text{(Equation 2)} b+2a=30(Equation 3)b + 2a = 30 \quad \text{(Equation 3)} 4b+3a=134(Equation 4)4b + 3a = 134 \quad \text{(Equation 4)}

First, subtract Equation (3) from Equation (2):

(b+4a)(b+2a)=13030(b + 4a) - (b + 2a) = 130 - 30 2a=1002a = 100 a=50a = 50

Step 3: Substitute a=50a = 50 into the equations

Substitute a=50a = 50 into Equation (3) to find bb:

b+2(50)=30b + 2(50) = 30 b+100=30b + 100 = 30 b=30100=70b = 30 - 100 = -70

Step 4: Find ff

Now substitute b=70b = -70 and a=50a = 50 into Equation (1) to solve for ff:

16b=6f16b = 6f 16(70)=6f16(-70) = 6f 1120=6f-1120 = 6f f=11206=5603186.67f = \frac{-1120}{6} = -\frac{560}{3} \approx -186.67

Final Answer:

  • a=50a = 50
  • b=70b = -70
  • f=5603186.67f = -\frac{560}{3} \approx -186.67

Let me know if you need any more clarification or details!


Related Questions:

  1. How would the solution change if c=120c = 120 instead of 130?
  2. What happens if e=140e = 140 instead of 134?
  3. How can you verify that the value of ff is correct?
  4. What is the relationship between ff and aa given the condition faf \neq a?
  5. How do you handle systems of equations when one equation involves a non-integer result?

Tip: To efficiently solve systems of equations, use substitution or elimination methods depending on the structure of the equations.

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Math Problem Analysis

Mathematical Concepts

Algebra
Systems of Equations

Formulas

16b = 6f
c = b + 4a
d = b + 2a
e = 4b + 3a
a = f

Theorems

Solving systems of linear equations by substitution or elimination

Suitable Grade Level

Grades 9-11