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Solve 4x + 12 = 56

The solution of 4x + 12 = 56 is x = 11.

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The lines y = 4x + 12 and y = 56 meet at x = 116810121416304050607080x = 11y = 4x + 12y = 56
The lines y = 4x + 12 and y = 56 meet at x = 11. 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.

    4x+12=564x + 12 = 56
  2. 2

    Subtract 12 from both sides:

    4x+12−12=56−12 ⇒ 4x=444x + 12 - 12 = 56 - 12 \ \Rightarrow\ 4x = 44
  3. 3

    Divide both sides by 4:

    4x4=444 ⇒ x=11\frac{4x}{4} = \frac{44}{4} \ \Rightarrow\ x = 11
  4. 4

    Check: put x = 11 back into the equation.

    4⋅11+12=44+12=56✓4\cdot11 + 12 = 44 + 12 = 56 \checkmark
LaTeX source of the formulas on this page
\[ 4x + 12 = 56\ \Rightarrow\ x = 11 \]
\[ 4x + 12 = 56 \]
\[ 4x + 12 - 12 = 56 - 12 \ \Rightarrow\ 4x = 44 \]
\[ \frac{4x}{4} = \frac{44}{4} \ \Rightarrow\ x = 11 \]
\[ 4\cdot11 + 12 = 44 + 12 = 56 \checkmark \]

Trying values of x in 4x + 12 = 56

x4x + 12Equals 56?
948no
1052no
1156yes
1260no
1364no

Questions

What is x in 4x + 12 = 56?

The solution of 4x + 12 = 56 is x = 11.

How do you solve 4x + 12 = 56?

Subtract 12 from both sides to get 4x = 44, then divide both sides by 4 to get x = 11.

How do I check the answer?

Replace x by 11: 4(11) + 12 = 56, which is 56.

Similar equations

    Solve 4x + 12 = 56: x = 11 (steps and check) | WordGPT