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Worksheet Worksheet 4
1.
Substitute \(s = -2t + 1\) into the equation \(2s + 1 = 4\) and solve for the variable. Use a complete presentation.
2.
Solve the equation \(3m - 2n - 7 = 5\) for when \(m = 4n - 3\text{.}\) Use a complete presentation.
3.
Substitute \(x = 3\) into the expression \(x^2 - 6x + 9\) and simplify the result. Use a complete presentation.
