Exercise algebra.manipulation.exponential.equation

Description
solve exponential equation algebraically

Derivation

81 == 3^(1-3*x)
algebra.manipulation.exponents.factor-as-power
3^4 == 3^(1-3*x)
algebra.manipulation.exponents.equation.same-base
4 == 1-3*x
algebra.equations.coverup.onevar.minus-right
-3 == 3*x
algebra.equations.coverup.times
-1 == x
algebra.equations.linear.flip
x == -1