The area of a rectangle is 120cm and its length is 12cm .Calculate the width of the rectangle
2 answers:
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First, distribute 3 into the parenthesis(multiply it to every term inside):
Add 21 to both sides:
Subtract 15m to both sides:
Divide -11 to both sides:
To check our work we can plug this back into the original equation for 'm':
Multiply:
Distribute 3 into the parenthesis:
Subtract:
Both sides are equal to each other, so we solved it correctly.