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Find the value of [tex]\( y \)[/tex].

[tex]\[ m_{21} = 3y + 6 \][/tex]


Sagot :

Let's solve the equation to find the value of [tex]\( y \)[/tex].

We are given:
[tex]\[ 3y + 6 = 21 \][/tex]

To solve for [tex]\( y \)[/tex], we follow these steps:

1. Isolate the term with [tex]\( y \)[/tex]:
Subtract 6 from both sides of the equation to move the constant term to the right-hand side:
[tex]\[ 3y + 6 - 6 = 21 - 6 \][/tex]
Simplifies to:
[tex]\[ 3y = 15 \][/tex]

2. Solve for [tex]\( y \)[/tex]:
Divide both sides of the equation by 3 to isolate [tex]\( y \)[/tex]:
[tex]\[ \frac{3y}{3} = \frac{15}{3} \][/tex]
Simplifies to:
[tex]\[ y = 5 \][/tex]

Thus, the value of [tex]\( y \)[/tex] is [tex]\( 5 \)[/tex].