Solve 12 Ex2.3 (- 3)[(- 4) - (1)] = [(- 3)(- 7)] - [(- 3)(1)] | 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

$$[ ( - 3 ) \times [ ( - 4 ) - ( 1 ) ] - ( - 3 ) \times ( - 1 ) ] - ( ( - 3 ) \times ( 1 ) ]$$

Evaluate

$15$

Solution Steps

Subtract $1$ from $-4$ to get $-5$.

$$-3\left(-5\right)-\left(-3\left(-1\right)\right)-\left(-3\right)$$

Multiply $-3$ and $-5$ to get $15$.

$$15-\left(-3\left(-1\right)\right)-\left(-3\right)$$

Multiply $-3$ and $-1$ to get $3$.

$$15-3-\left(-3\right)$$

Subtract $3$ from $15$ to get $12$.

$$12-\left(-3\right)$$

The opposite of $-3$ is $3$.

$$12+3$$

Add $12$ and $3$ to get $15$.

$$15$$

Factor

$3\times 5$