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Solve 5x + 15 = 110

The solution of 5x + 15 = 110 is x = 19.

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The lines y = 5x + 15 and y = 110 meet at x = 191416182022248090100110120130140x = 19y = 5x + 15y = 110
The lines y = 5x + 15 and y = 110 meet at x = 19. 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+15=1105x + 15 = 110
  2. 2

    Subtract 15 from both sides:

    5x+15−15=110−15 ⇒ 5x=955x + 15 - 15 = 110 - 15 \ \Rightarrow\ 5x = 95
  3. 3

    Divide both sides by 5:

    5x5=955 ⇒ x=19\frac{5x}{5} = \frac{95}{5} \ \Rightarrow\ x = 19
  4. 4

    Check: put x = 19 back into the equation.

    5⋅19+15=95+15=110✓5\cdot19 + 15 = 95 + 15 = 110 \checkmark
LaTeX source of the formulas on this page
\[ 5x + 15 = 110\ \Rightarrow\ x = 19 \]
\[ 5x + 15 = 110 \]
\[ 5x + 15 - 15 = 110 - 15 \ \Rightarrow\ 5x = 95 \]
\[ \frac{5x}{5} = \frac{95}{5} \ \Rightarrow\ x = 19 \]
\[ 5\cdot19 + 15 = 95 + 15 = 110 \checkmark \]

Trying values of x in 5x + 15 = 110

x5x + 15Equals 110?
17100no
18105no
19110yes
20115no
21120no

Questions

What is x in 5x + 15 = 110?

The solution of 5x + 15 = 110 is x = 19.

How do you solve 5x + 15 = 110?

Subtract 15 from both sides to get 5x = 95, then divide both sides by 5 to get x = 19.

How do I check the answer?

Replace x by 19: 5(19) + 15 = 110, which is 110.

Similar equations

    Solve 5x + 15 = 110: x = 19 (steps and check) | WordGPT