Solve A=-(-3*4+7-12)-4(5-13-6+20)

$$A = - ( - 3 \cdot 4 + 7 - 12 ) - 4 ( 5 - 13 - 6 + 20 )$$

Solve for A

$$A=-7$$

Steps for Solving Linear Equation

Multiply -3 and 4 to get -12.

$$A=-\left(-12+7-12\right)-4\left(5-13-6+20\right)$$

Add -12 and 7 to get -5.

$$A=-\left(-5-12\right)-4\left(5-13-6+20\right)$$

Subtract 12 from -5 to get -17.

$$A=-\left(-17\right)-4\left(5-13-6+20\right)$$

The opposite of -17 is 17.

$$A=17-4\left(5-13-6+20\right)$$

Subtract 13 from 5 to get -8.

$$A=17-4\left(-8-6+20\right)$$

Subtract 6 from -8 to get -14.

$$A=17-4\left(-14+20\right)$$

Add -14 and 20 to get 6.

$$A=17-4\times 6$$

Multiply 4 and 6 to get 24.

$$A=17-24$$

Subtract 24 from 17 to get -7.

$$A=-7$$

Assign A

$$A≔-7$$