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Mate im sorry for replying here but i need points to ask a question.
5x+12z Because you take, 3z+9z and that is equivalent to 12z. and then you put the 5x back into the equation so it is 5x+12z
Answer:
what is this russian math?
Step-by-step explanation:
Answer:
cross multipy them into a fraction
Step-by-step explanation:
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Step-by-step explanation:
<u>Step 1: Multiply
</u>


<u>Step 2: Combine
</u>


Answer: 