Solve s=15*2+1/2-9*812^2

$$s = 15 \cdot 2+ \frac{ 1 }{ 2 } -9 \cdot 81 { 2 }^{ 2 }$$

Solve for s

$$s = -\frac{5771}{2} = -2885\frac{1}{2} = -2885.5$$

Steps for Solving Linear Equation

Multiply 15 and 2 to get 30.

$$s=30+\frac{1}{2}-9\times 81\times 2^{2}$$

Convert 30 to fraction \frac{60}{2}.

$$s=\frac{60}{2}+\frac{1}{2}-9\times 81\times 2^{2}$$

Since \frac{60}{2} and \frac{1}{2} have the same denominator, add them by adding their numerators.

$$s=\frac{60+1}{2}-9\times 81\times 2^{2}$$

Add 60 and 1 to get 61.

$$s=\frac{61}{2}-9\times 81\times 2^{2}$$

Multiply 9 and 81 to get 729.

$$s=\frac{61}{2}-729\times 2^{2}$$

Calculate 2 to the power of 2 and get 4.

$$s=\frac{61}{2}-729\times 4$$

Multiply 729 and 4 to get 2916.

$$s=\frac{61}{2}-2916$$

Convert 2916 to fraction \frac{5832}{2}.

$$s=\frac{61}{2}-\frac{5832}{2}$$

Since \frac{61}{2} and \frac{5832}{2} have the same denominator, subtract them by subtracting their numerators.

$$s=\frac{61-5832}{2}$$

Subtract 5832 from 61 to get -5771.

$$s=-\frac{5771}{2}$$

Assign s

$$s≔-\frac{5771}{2}$$