What is the answer of this y= 1/5 x–9
2 answers:
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You can always add or subtract same value to/from both sides of equation. The same is true about multiplication and division.
In your case you have to subtract x from both sides of equation in order to get rid of it on the left side:
But it's easier to remember that if you want to move some member of equation to other side, you just have to change it's sign. Let's practice a bit using your equation (I have added "plus" signs where they are usually omitted to better understend what's going on):
Move 2y to the right side:
Move 8 to the left side:
Move both x and 2y to the right side:
In your case you have to subtract x from both sides of equation in order to get rid of it on the left side:
But it's easier to remember that if you want to move some member of equation to other side, you just have to change it's sign. Let's practice a bit using your equation (I have added "plus" signs where they are usually omitted to better understend what's going on):
Move 2y to the right side:
Move 8 to the left side:
Move both x and 2y to the right side: