Solving:
<span>First remove the parentheses:
</span>
<span>First solve the multiplication:
</span>
<span>Do the subtraction, obeying the rule of signs of the greatest number:
</span>
</span>
Solve using the substitution method: 6x + y =15 4x + 3y = 31
1 answer:
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Solving:
<span>First remove the parentheses:
</span>
<span>First solve the multiplication:
</span>
<span>Do the subtraction, obeying the rule of signs of the greatest number:
</span>
</span>