Answer:
Explanation:
First, you want to isolate the variable on one side, and the number on the other.
To do that, let's start with our equation here.
9y+7=2y+98
We can subtract 2y from both sides:
9y-2y+7=2y-2y+98
The 2ys cancel on the other side:
9y-2y+7=98
And then we can simplify the other side due to similar variable.
9-2 is 7, so the equation is:
7y+7=98
Now we want to isolate the number. To do that, we can subtract 7 from both sides.
7y+7-7=98-7
The sevens cancel on the other side. You are left with this equation:
7y=98-7
98-7=91, so:
7y=91
Now we want to isolate the y completely. To do this, we can divide both sides by 7.
(7y/7)=91/7
7y/7 becomes y, so the equation becomes this:
y=91/7
91 divided by 7 is 13.
y=13
Thus we got our answer. Y=13
But before we do anything, let's check our answer. We can do this by plugging y into the original equation.
9(13)+7=2(13)+98
117+7=26+98
124=124
So, y=13.