Solve. j = http://static.k12.com/bank_packages/files/media/mathml_770db8e40ee1917d0bffc2e29ecf369d229a47ab_1.gif
Do you see what the first step would be?
Hint: what is the inverse (opposite) operation of divide by 11?
im listinging
The opposite of division is ...?
*
The opposite of division is multiplication, correct!
We can multiply both sides of the equation by 11. We would do this to cancel the 11 in the denominator on the left hand side of the =.
11 * (3+j/11) = 2 * 11
The 11's cancel on the left hand side of the = and on the right hand side we get 2 * 11, which is equal to ...?
3 + j = ...?
one sec
-11?
Okay, remember that 2 times 11 is the same as 11 + 11 = 22
Not quite! 2 * 11 = 22 because 2 times 11 is the same as 11 + 11, which is 22.
So we would get 3 + j = 22. Do you have any questions about that last step?
No
The next step is to move the 3. We can move the 3 by doing the opposite of +3 to both sides. Do you know what the opposite of +3 is?
Hint: what is the opposite of addition?
The opposite of addition is subtraction, so we would subtract 3 from both sides next.
3 + j - 3 = 11 - 3
On the left hand side of the equation we can combine 3 - 3 together and get 0.
j = 11 - 3
The final step is to subtract 3 from 11. Do you know what 11 - 3 is equal to?
11 - 3 = 8, so j = 8 would be the final answer. Do you have any questions about what we just did?
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