Solve (100 - 11x) - (9x + 10) = 18 | Equatix - Math Solver

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Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$(100-11x)-(9x+10)=18$$

Solve for x

$x = \frac{18}{5} = 3\frac{3}{5} = 3.6$

Steps for Solving Linear Equation

To find the opposite of $9x+10$, find the opposite of each term.

$$100-11x-9x-10=18$$

Combine $-11x$ and $-9x$ to get $-20x$.

$$100-20x-10=18$$

Subtract $10$ from $100$ to get $90$.

$$90-20x=18$$

Subtract $90$ from both sides.

$$-20x=18-90$$

Subtract $90$ from $18$ to get $-72$.

$$-20x=-72$$

Divide both sides by $-20$.

$$x=\frac{-72}{-20}$$

Reduce the fraction $\frac{-72}{-20}$ to lowest terms by extracting and canceling out $-4$.

$$x=\frac{18}{5}$$