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Solve 5x + 3 = 8

The solution of 5x + 3 = 8 is x = 1.

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The lines y = 5x + 3 and y = 8 meet at x = 1-4-2246-20-1010203040x = 1y = 5x + 3y = 8
The lines y = 5x + 3 and y = 8 meet at x = 1. 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=85x + 3 = 8
  2. 2

    Subtract 3 from both sides:

    5x+3−3=8−3 ⇒ 5x=55x + 3 - 3 = 8 - 3 \ \Rightarrow\ 5x = 5
  3. 3

    Divide both sides by 5:

    5x5=55 ⇒ x=1\frac{5x}{5} = \frac{5}{5} \ \Rightarrow\ x = 1
  4. 4

    Check: put x = 1 back into the equation.

    5⋅1+3=5+3=8✓5\cdot1 + 3 = 5 + 3 = 8 \checkmark
LaTeX source of the formulas on this page
\[ 5x + 3 = 8\ \Rightarrow\ x = 1 \]
\[ 5x + 3 = 8 \]
\[ 5x + 3 - 3 = 8 - 3 \ \Rightarrow\ 5x = 5 \]
\[ \frac{5x}{5} = \frac{5}{5} \ \Rightarrow\ x = 1 \]
\[ 5\cdot1 + 3 = 5 + 3 = 8 \checkmark \]

Trying values of x in 5x + 3 = 8

x5x + 3Equals 8?
-1-2no
03no
18yes
213no
318no

Questions

What is x in 5x + 3 = 8?

The solution of 5x + 3 = 8 is x = 1.

How do you solve 5x + 3 = 8?

Subtract 3 from both sides to get 5x = 5, then divide both sides by 5 to get x = 1.

How do I check the answer?

Replace x by 1: 5(1) + 3 = 8, which is 8.

Similar equations

    Solve 5x + 3 = 8: x = 1 (steps and check) | WordGPT