Solve -20=0.17*1.047^10d

$$- 20 = 0.17 \times 1.047 ^ { 10 } d$$

Solve for d

$$d = -\frac{2000000000000000000000000000000000}{26910126428896658936442644500833} = -74\frac{8.65064426164721 \times 10^{30}}{2.6910126428896657 \times 10^{31}} \approx -74.321464274$$

Steps for Solving Linear Equation

Calculate 1.047 to the power of 10 and get 1.582948613464509349202508500049.

$$-20=0.17\times 1.582948613464509349202508500049d$$

Multiply 0.17 and 1.582948613464509349202508500049 to get 0.26910126428896658936442644500833.

$$-20=0.26910126428896658936442644500833d$$

Swap sides so that all variable terms are on the left hand side.

$$0.26910126428896658936442644500833d=-20$$

Divide both sides by 0.26910126428896658936442644500833.

$$d=\frac{-20}{0.26910126428896658936442644500833}$$

Expand \frac{-20}{0.26910126428896658936442644500833} by multiplying both numerator and the denominator by 100000000000000000000000000000000.

$$d=\frac{-2000000000000000000000000000000000}{26910126428896658936442644500833}$$

Fraction \frac{-2000000000000000000000000000000000}{26910126428896658936442644500833} can be rewritten as -\frac{2000000000000000000000000000000000}{26910126428896658936442644500833} by extracting the negative sign.

$$d=-\frac{2000000000000000000000000000000000}{26910126428896658936442644500833}$$