6x+12y-6z+7x7y-28z= 13x+19y-34z
Answer:
Find the value of x the value is x=4
3x4=12
12-5=7
Step-by-step explanation:
Answer:
You've picked the right one! It's the one you've marked in the picture!
Step-by-step explanation:
Multiplication is just like addition; you're just doing it multiple times instead of once. 3<em>x</em> is equal to <em>x</em> + <em>x</em> + <em>x</em>. That's exactly what the option you chose in the image shows. Great job! You've got this!