Multi-step Equations

A multi-step equation is an equation that requires more than one step to isolate the variable and solve for its value.

To isolate a variable, you perform inverse operations to both sides of the equation until the variable is alone on one side.

The first step is to get all terms involving x on one side and constant terms on the other side.

The solution is x = 4.

You distribute 3 to both terms inside the parentheses: 3 * 5x - 3 * 7 = 15x - 21.

The value of h is 7.

Combining like terms means to add or subtract terms that have the same variable raised to the same power.

First, distribute 3 to both terms in the parentheses, then combine like terms and isolate b.

Checking your solution ensures that the value you found satisfies the original equation.

Subtract 2x from both sides, then subtract 28 from both sides, and finally divide by 4.