Math Problem Statement

Solve the following: a) (3x + 4)/2 = 9.5 b) (7 + 2x)/3 = 5

Solution

Let's solve both equations from the image step-by-step.

Part (a):

3x+42=9.5\frac{3x + 4}{2} = 9.5

Step 1: Multiply both sides by 2 to eliminate the denominator. 3x+4=9.5×23x + 4 = 9.5 \times 2 3x+4=193x + 4 = 19

Step 2: Subtract 4 from both sides. 3x=1943x = 19 - 4 3x=153x = 15

Step 3: Divide by 3 to solve for xx. x=153x = \frac{15}{3} x=5x = 5

Part (b):

7+2x3=5\frac{7 + 2x}{3} = 5

Step 1: Multiply both sides by 3 to eliminate the denominator. 7+2x=5×37 + 2x = 5 \times 3 7+2x=157 + 2x = 15

Step 2: Subtract 7 from both sides. 2x=1572x = 15 - 7 2x=82x = 8

Step 3: Divide by 2 to solve for xx. x=82x = \frac{8}{2} x=4x = 4

Final Answers:

  • For (a), x=5x = 5.
  • For (b), x=4x = 4.

Would you like more details or have any further questions?

Here are 5 related questions for further practice:

  1. Solve 5x+73=8\frac{5x + 7}{3} = 8.
  2. Solve 4x35=6\frac{4x - 3}{5} = 6.
  3. Solve 2x+5=152x + 5 = 15.
  4. Solve x4+3=7\frac{x}{4} + 3 = 7.
  5. Solve 72x=97 - 2x = 9.

Tip: Always start by eliminating fractions in an equation by multiplying both sides by the denominator!

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Math Problem Analysis

Mathematical Concepts

Algebra
Linear Equations

Formulas

Basic linear equation formula ax + b = c

Theorems

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Suitable Grade Level

Grades 6-8