Math Problem Statement

Solve each equation. Check your work.

Solution

Let's solve each equation from the image one by one.

  1. 12x=14\frac{1}{2}x = 14

    • Multiply both sides by 2 to solve for xx: x=14×2=28x = 14 \times 2 = 28
  2. 47w=24\frac{4}{7}w = 24

    • Multiply both sides by 74\frac{7}{4} to isolate ww: w=24×74=42w = 24 \times \frac{7}{4} = 42
  3. 38r=1516\frac{3}{8}r = \frac{15}{16}

    • Multiply both sides by 83\frac{8}{3} to solve for rr: r=1516×83=12048=2.5r = \frac{15}{16} \times \frac{8}{3} = \frac{120}{48} = 2.5
  4. 57c=1314\frac{5}{7}c = \frac{13}{14}

    • Multiply both sides by 75\frac{7}{5}: c=1314×75=9170=1.3c = \frac{13}{14} \times \frac{7}{5} = \frac{91}{70} = 1.3
  5. 0.4t=0.720.4t = 0.72

    • Divide both sides by 0.4: t=0.720.4=1.8t = \frac{0.72}{0.4} = 1.8
  6. 1.8p=19.81.8p = 19.8

    • Divide both sides by 1.8: p=19.81.8=11p = \frac{19.8}{1.8} = 11
  7. 58y=12\frac{5}{8}y = -\frac{1}{2}

    • Multiply both sides by 85\frac{8}{5}: y=12×85=810=0.8y = -\frac{1}{2} \times \frac{8}{5} = -\frac{8}{10} = -0.8
  8. 137n=1314\frac{13}{7}n = -\frac{13}{14}

    • Multiply both sides by 713\frac{7}{13}: n=1314×713=12=0.5n = -\frac{13}{14} \times \frac{7}{13} = -\frac{1}{2} = -0.5
  9. 5.2=0.04m-5.2 = 0.04m

    • Divide both sides by 0.04: m=5.20.04=130m = \frac{-5.2}{0.04} = -130
  10. 0.8g=3.36-0.8g = 3.36

    • Divide both sides by -0.8: g=3.360.8=4.2g = \frac{3.36}{-0.8} = -4.2
  11. 2h=1.46-2h = -1.46

    • Divide both sides by -2: h=1.462=0.73h = \frac{-1.46}{-2} = 0.73
  12. 79s=13-\frac{7}{9}s = -\frac{1}{3}

    • Multiply both sides by 97\frac{9}{7}: s=13×97=37s = \frac{-1}{3} \times \frac{9}{7} = \frac{3}{7}

Would you like further details on any of these steps?

Related Questions:

  1. How can you verify the solution to an equation by substitution?
  2. What are the steps for solving equations with fractions?
  3. How can you solve an equation when both sides are negative?
  4. What is the general approach to solving linear equations?
  5. How do you deal with decimals when solving algebraic equations?

Tip:

Always double-check your solution by substituting it back into the original equation to ensure that both sides remain equal.

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Math Problem Analysis

Mathematical Concepts

Algebra
Solving Linear Equations
Fractions
Decimals

Formulas

Multiplication and division to isolate variables
Fraction multiplication and division
Decimal division

Theorems

Multiplication property of equality
Division property of equality

Suitable Grade Level

Grades 7-9