Answer: -12
Which of these words is a root word?
2 answers:
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There are 3 available methods - Substitution , Elimination and <span>Matrix.
</span>The substitution<span> method is used to eliminate one of the variables by replacement.
</span>
The elimination method<span> is used for solving linear systems.
</span>
<span>A Matrix is an array of numbers.
</span>
Lets use Substitution to solve this system.
Now substitute <span>
</span>
Hence -
</span>The substitution<span> method is used to eliminate one of the variables by replacement.
</span>
The elimination method<span> is used for solving linear systems.
</span>
<span>A Matrix is an array of numbers.
</span>
Lets use Substitution to solve this system.
Now substitute <span>
</span>
Hence -