Solve (4a + 9) - (a + 7) | 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

$$(4a+9)-(a+7)$$

Evaluate

$3a+2$

Solution Steps

To find the opposite of $a+7$, find the opposite of each term.

$$4a+9-a-7$$

Combine $4a$ and $-a$ to get $3a$.

$$3a+9-7$$

Subtract $7$ from $9$ to get $2$.

$$3a+2$$

Expand

$3a+2$

Solution Steps

To find the opposite of $a+7$, find the opposite of each term.

$$4a+9-a-7$$

Combine $4a$ and $-a$ to get $3a$.

$$3a+9-7$$

Subtract $7$ from $9$ to get $2$.

$$3a+2$$