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Solve 3x + 8 = 50

The solution of 3x + 8 = 50 is x = 14.

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The lines y = 3x + 8 and y = 50 meet at x = 148101214161820303540455055606570x = 14y = 3x + 8y = 50
The lines y = 3x + 8 and y = 50 meet at x = 14. The solution of the equation is the x-coordinate of the point where the two sides are equal.

How to work it out

  1. 1

    The goal is to get x alone. Undo the operations in the opposite order: first the addition, then the multiplication.

    3x+8=503x + 8 = 50
  2. 2

    Subtract 8 from both sides:

    3x+8−8=50−8 ⇒ 3x=423x + 8 - 8 = 50 - 8 \ \Rightarrow\ 3x = 42
  3. 3

    Divide both sides by 3:

    3x3=423 ⇒ x=14\frac{3x}{3} = \frac{42}{3} \ \Rightarrow\ x = 14
  4. 4

    Check: put x = 14 back into the equation.

    3⋅14+8=42+8=50✓3\cdot14 + 8 = 42 + 8 = 50 \checkmark
LaTeX source of the formulas on this page
\[ 3x + 8 = 50\ \Rightarrow\ x = 14 \]
\[ 3x + 8 = 50 \]
\[ 3x + 8 - 8 = 50 - 8 \ \Rightarrow\ 3x = 42 \]
\[ \frac{3x}{3} = \frac{42}{3} \ \Rightarrow\ x = 14 \]
\[ 3\cdot14 + 8 = 42 + 8 = 50 \checkmark \]

Trying values of x in 3x + 8 = 50

x3x + 8Equals 50?
1244no
1347no
1450yes
1553no
1656no

Questions

What is x in 3x + 8 = 50?

The solution of 3x + 8 = 50 is x = 14.

How do you solve 3x + 8 = 50?

Subtract 8 from both sides to get 3x = 42, then divide both sides by 3 to get x = 14.

How do I check the answer?

Replace x by 14: 3(14) + 8 = 50, which is 50.

Similar equations

    Solve 3x + 8 = 50: x = 14 (steps and check) | WordGPT