Solve (20x-5y-30z)-(15+4x-9y) | 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

$$(20x-5y-30z)-(15+4x-9y)$$

Evaluate

$16x+4y-30z-15$

Solution Steps

To find the opposite of $15+4x-9y$, find the opposite of each term.

$$20x-5y-30z-15-4x-\left(-9y\right)$$

The opposite of $-9y$ is $9y$.

$$20x-5y-30z-15-4x+9y$$

Combine $20x$ and $-4x$ to get $16x$.

$$16x-5y-30z-15+9y$$

Combine $-5y$ and $9y$ to get $4y$.

$$16x+4y-30z-15$$

Expand

$16x+4y-30z-15$

Solution Steps

To find the opposite of $15+4x-9y$, find the opposite of each term.

$$20x-5y-30z-15-4x-\left(-9y\right)$$

The opposite of $-9y$ is $9y$.

$$20x-5y-30z-15-4x+9y$$

Combine $20x$ and $-4x$ to get $16x$.

$$16x-5y-30z-15+9y$$

Combine $-5y$ and $9y$ to get $4y$.

$$16x+4y-30z-15$$