Solve 12x + 10 = −14

The solution of 12x + 10 = −14 is x = -2.

12x + 10 = -14\ \Rightarrow\ x = -2

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The lines y = 12x + 10 and y = -14 meet at x = -2. The solution of the equation is the x-coordinate of the point where the two sides are equal.

How to work it out

1
The goal is to get x alone. Undo the operations in the opposite order: first the addition, then the multiplication.
$12x + 10 = -14$
2
Subtract 10 from both sides:
$12x + 10 - 10 = -14 - 10 \ \Rightarrow\ 12x = -24$
3
Divide both sides by 12:
$\frac{12x}{12} = \frac{-24}{12} \ \Rightarrow\ x = -2$
4
Check: put x = -2 back into the equation.
$12\cdot(-2) + 10 = -24 + 10 = -14 \checkmark$

LaTeX source of the formulas on this page

\[ 12x + 10 = -14\ \Rightarrow\ x = -2 \]
\[ 12x + 10 = -14 \]
\[ 12x + 10 - 10 = -14 - 10 \ \Rightarrow\ 12x = -24 \]
\[ \frac{12x}{12} = \frac{-24}{12} \ \Rightarrow\ x = -2 \]
\[ 12\cdot(-2) + 10 = -24 + 10 = -14 \checkmark \]

Trying values of x in 12x + 10 = −14

x	12x + 10	Equals -14?
-4	-38	no
-3	-26	no
-2	-14	yes
-1	-2	no
0	10	no

Questions

What is x in 12x + 10 = −14?

The solution of 12x + 10 = −14 is x = -2.

How do you solve 12x + 10 = −14?

Subtract 10 from both sides to get 12x = -24, then divide both sides by 12 to get x = -2.

How do I check the answer?

Replace x by -2: 12(-2) + 10 = -14, which is -14.

Solve 12x + 10 = −14

How to work it out

Trying values of x in 12x + 10 = −14

Questions

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