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Solve 3x + 10 = 43

The solution of 3x + 10 = 43 is x = 11.

The lines y = 3x + 10 and y = 43 meet at x = 1168101214162530354045505560x = 11y = 3x + 10y = 43
The lines y = 3x + 10 and y = 43 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.

    3x+10=433x + 10 = 43
  2. 2

    Subtract 10 from both sides:

    3x+10−10=43−10 ⇒ 3x=333x + 10 - 10 = 43 - 10 \ \Rightarrow\ 3x = 33
  3. 3

    Divide both sides by 3:

    3x3=333 ⇒ x=11\frac{3x}{3} = \frac{33}{3} \ \Rightarrow\ x = 11
  4. 4

    Check: put x = 11 back into the equation.

    3⋅11+10=33+10=43✓3\cdot11 + 10 = 33 + 10 = 43 \checkmark
LaTeX source of the formulas on this page
\[ 3x + 10 = 43\ \Rightarrow\ x = 11 \]
\[ 3x + 10 = 43 \]
\[ 3x + 10 - 10 = 43 - 10 \ \Rightarrow\ 3x = 33 \]
\[ \frac{3x}{3} = \frac{33}{3} \ \Rightarrow\ x = 11 \]
\[ 3\cdot11 + 10 = 33 + 10 = 43 \checkmark \]

Trying values of x in 3x + 10 = 43

x3x + 10Equals 43?
937no
1040no
1143yes
1246no
1349no

Questions

What is x in 3x + 10 = 43?

The solution of 3x + 10 = 43 is x = 11.

How do you solve 3x + 10 = 43?

Subtract 10 from both sides to get 3x = 33, then divide both sides by 3 to get x = 11.

How do I check the answer?

Replace x by 11: 3(11) + 10 = 43, which is 43.

Similar equations

    Solve 3x + 10 = 43: x = 11 (steps and check) | WordGPT