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| 2(-3a+5)=-4(a+4)
2 2 -4 -4 -6a+10=-4a+(-16) -4a -4a -2a+10=-16 10 10 -2a=-26 -2 -2 A=13 |
This a very simple problem, even though it looks difficult. First, get rid of the parentheses os distribute the 2 and the 4 on both sides. Next, combine like terms by subtracting the -4 from one side onto the other. Then subtract the 10 to the other side. Now you have a simple equation of -2a=-26. Dived both sides by 2 to get the answer as A=13. See, told you it was simple! |
| A=(b1+b2)h
2 A=(b1+b2)h 2 2 2A=(b1+b2)h 2A=(b1+b2) h h 2A=(b1+b2) h 2A=(b1+b2) h -b2 -b2 2A - b2=b1 h |
This is a fairly difficult equation, but once you do it, it seems very easy! Your solving to B1. First, divide the 2 on both sides to even the equation out. Then get rid of the "h" by dividing it as well. Now that you have all the difficult factors on one side of the equal sign, just simply subtract b2 from both sides and you have the answer to b1! Congratulations |
| -(x
+ 7)=-6x + 8
-1 -1 -1x + -7=-6x + 8 7 7 -1x=-6x + 15 6x 6x 5x=15 5 5 x=3 |
This problem is also very easy as long as you don't get the negatives mixed up. To start off, get rid of the parentheses. When you distribute the negative "X", be aware that it represents a negative 1x. After that, add a 7 to both sides and then add a 6x to bothsides. Once you've done that, you have a simple problem that requires you to divide 15 by 5x to come up with the answer of X=3. You did it! |
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