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Solve 5x + 3 = 38

The solution of 5x + 3 = 38 is x = 7.

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The lines y = 5x + 3 and y = 38 meet at x = 72468101210203040506070x = 7y = 5x + 3y = 38
The lines y = 5x + 3 and y = 38 meet at x = 7. 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.

    5x+3=385x + 3 = 38
  2. 2

    Subtract 3 from both sides:

    5x+3−3=38−3 ⇒ 5x=355x + 3 - 3 = 38 - 3 \ \Rightarrow\ 5x = 35
  3. 3

    Divide both sides by 5:

    5x5=355 ⇒ x=7\frac{5x}{5} = \frac{35}{5} \ \Rightarrow\ x = 7
  4. 4

    Check: put x = 7 back into the equation.

    5⋅7+3=35+3=38✓5\cdot7 + 3 = 35 + 3 = 38 \checkmark
LaTeX source of the formulas on this page
\[ 5x + 3 = 38\ \Rightarrow\ x = 7 \]
\[ 5x + 3 = 38 \]
\[ 5x + 3 - 3 = 38 - 3 \ \Rightarrow\ 5x = 35 \]
\[ \frac{5x}{5} = \frac{35}{5} \ \Rightarrow\ x = 7 \]
\[ 5\cdot7 + 3 = 35 + 3 = 38 \checkmark \]

Trying values of x in 5x + 3 = 38

x5x + 3Equals 38?
528no
633no
738yes
843no
948no

Questions

What is x in 5x + 3 = 38?

The solution of 5x + 3 = 38 is x = 7.

How do you solve 5x + 3 = 38?

Subtract 3 from both sides to get 5x = 35, then divide both sides by 5 to get x = 7.

How do I check the answer?

Replace x by 7: 5(7) + 3 = 38, which is 38.

Similar equations

    Solve 5x + 3 = 38: x = 7 (steps and check) | WordGPT