Solve (7x - 8) + (2x + 6) | 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

$$(7x-8)+(2x+6)$$

Evaluate

$9x-2$

Differentiate w.r.t. x

$9$

Steps Using Derivative Rule for Sum

Combine $7x$ and $2x$ to get $9x$.

$$\frac{\mathrm{d}}{\mathrm{d}x}(9x-8+6)$$

Add $-8$ and $6$ to get $-2$.

$$\frac{\mathrm{d}}{\mathrm{d}x}(9x-2)$$

The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is $0$. The derivative of $ax^{n}$ is $nax^{n-1}$.

$$9x^{1-1}$$

Subtract $1$ from $1$.

$$9x^{0}$$

For any term $t$ except $0$, $t^{0}=1$.

$$9\times 1$$

For any term $t$, $t\times 1=t$ and $1t=t$.

$$9$$