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Solve 5x + 13 = 88

The solution of 5x + 13 = 88 is x = 15.

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The lines y = 5x + 13 and y = 88 meet at x = 1510121416182060708090100110120x = 15y = 5x + 13y = 88
The lines y = 5x + 13 and y = 88 meet at x = 15. 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+13=885x + 13 = 88
  2. 2

    Subtract 13 from both sides:

    5x+13−13=88−13 ⇒ 5x=755x + 13 - 13 = 88 - 13 \ \Rightarrow\ 5x = 75
  3. 3

    Divide both sides by 5:

    5x5=755 ⇒ x=15\frac{5x}{5} = \frac{75}{5} \ \Rightarrow\ x = 15
  4. 4

    Check: put x = 15 back into the equation.

    5⋅15+13=75+13=88✓5\cdot15 + 13 = 75 + 13 = 88 \checkmark
LaTeX source of the formulas on this page
\[ 5x + 13 = 88\ \Rightarrow\ x = 15 \]
\[ 5x + 13 = 88 \]
\[ 5x + 13 - 13 = 88 - 13 \ \Rightarrow\ 5x = 75 \]
\[ \frac{5x}{5} = \frac{75}{5} \ \Rightarrow\ x = 15 \]
\[ 5\cdot15 + 13 = 75 + 13 = 88 \checkmark \]

Trying values of x in 5x + 13 = 88

x5x + 13Equals 88?
1378no
1483no
1588yes
1693no
1798no

Questions

What is x in 5x + 13 = 88?

The solution of 5x + 13 = 88 is x = 15.

How do you solve 5x + 13 = 88?

Subtract 13 from both sides to get 5x = 75, then divide both sides by 5 to get x = 15.

How do I check the answer?

Replace x by 15: 5(15) + 13 = 88, which is 88.

Similar equations

    Solve 5x + 13 = 88: x = 15 (steps and check) | WordGPT