<span>to isolate y first step as follows;
5x - 7y - 10
-7y = -5x -10 (change the 5x to this side as negative)
</span><span>then divide by -7 and you have
-7y = -5x + 10
--- --- ---
-7 -7 -7
then you havd:
y = 5/7x -10/7</span>
Another answer would be 140 ones
You buy 5 ice creams for the price of $9 on cyber Monday. Your friend buy 12 ice creams for $15 on black Friday. Write the two ratios of you and your friend.
2x-1=7x+44 is equal to -9. The first step is to add one on both sides to get x by itself. Right now you should have 2x= 7x+45. Then you subtract 7x from both sides. You should have -5x=45. Now divided -5 on both sides. You should get the answer x=-9. By the way remember only subtract variables from other variable and regular numbers only from other regular numbers. Hope this helps, if you have any questions please comment.