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Solving One-Step Equations

Solving One-Step Equations 1.2 - Solution

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We substitute 33 for xx in the equation. If the left- and right-hand sides are equal, then x=3x=3 is a solution.
17+5x=474x317 + 5x = 47 - 4x - 3
17+53=?4743317 + 5 \cdot {\color{#0000FF}{3}} \stackrel{?}{=} 47 - 4 \cdot {\color{#0000FF}{3}} - 3
17+15=?4712317 + 15 \stackrel{?}{=} 47 - 12 - 3
32=3232 =32
Both sides of the equation are equal to 32.32. Thus, x=3x=3 solves the equation.