Which step should be completed first to solve the equation 8x - 12 = 13? A. Add 12 to both sides. B. Add 13 to both sides. C. Divide both sides by 8. D. Subtract 13 from both sides. x= ?
You're missing the equation.
one sec
Okay.
12 is being subtracted in the equation, we must do the opposite to keep the balance, and what's the opposite of subtraction?
What is the inverse operation of subtracting is adding, and the inverse operation of multiplying is dividing.
Addition.
"What is the inverse operation of subtracting is adding, and the inverse operation of multiplying is dividing." Makes no sense^^
Yes, so what are we going to do to 12?
add it to 13?
Yes! We add it to both sides.
Yea
Thanks
Adding 12 to both sides will cancel out - 12, and you add it to 13.
Oh, and btw, we add 12, and not subtract 13, because 12 is with our variable(x), so we want to get rid of the number that's with the variable.
So the answer A
Yep.
Thanks.
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