FMCC Worksheet 4

Substitute $s = - 2 t + 1$ into the equation $2 s + 1 = 4$ and solve for the variable. Use a complete presentation.

Solve the equation $3 m - 2 n - 7 = 5$ for when $m = 4 n - 3 .$ Use a complete presentation.

Substitute $x = 3$ into the expression $x^{2} - 6 x + 9$ and simplify the result. Use a complete presentation.