Beginning with the equation $x=9$x=9, write the new equation produced by adding $1$1 to both sides.

Beginning with the equation $x=14$x=14, write the new equation produced by subtracting $7$7 from both sides.

Beginning with the equation $x=10$x=10, write the new equation produced by multiplying both sides by $5$5.

Beginning with the equation $x=99$x=99, write the new equation produced by dividing both sides by $11$11.

Solve first-degree equations with nonfractional coefficients, using a variety of tools and strategies