What is the solution to this equation?

1. 2x+45-78=4x+6x-0

Expert Answers

An illustration of the letter 'A' in a speech bubbles


For this first one, the first thing you have to do is get the variables on one side and the numbers on the other.  So let's subtract 2x from each side.

45-78 = 4x + 6x - 2x

-33 = 8x

x = -33/8


This one is easier because we don't even have to do any kind of addition or subtraction.  We just subtract 67 from both sides.

-77x = -67

Then divide both sides by -77

x = 67/77


This one is done just the same as the first one.  Try it yourself.  The answer you should come up with is

y = 186/57

See eNotes Ad-Free

Start your 48-hour free trial to get access to more than 30,000 additional guides and more than 350,000 Homework Help questions answered by our experts.

Get 48 Hours Free Access
Approved by eNotes Editorial