QuestionJika $x=3$ , buktikan bahwa $2x + 9 = 15$ .

Studdy Solution

STEP 1

Assumptions1. The value of $x$ is given as $3$ . The equation to solve is $x +9 =15$

STEP 2

First, we need to substitute the given value of $x$ into the equation. $2x +9 =15$ becomes $2() +9 =15$

STEP 3

Now, calculate the left side of the equation.
$2(3) +9 =6 +9 =15$

STEP 4

The left side of the equation equals $15$ , which matches the right side of the equation. Therefore, the equation is correct when $x =3$ .
The solution is $x =3$ .

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