I'm going to solve [ 2b = 10 ] for you, but I'm not going to do it in the best way.
The best way is for you to make a date with your teacher to sit down and review
some of this stuff, so that you know how to do it.
The way I'm going to do it, you'll have the solution to [ 2b = 10 ], but there will be
three problems with it:
-- Nobody needs that information.
-- You won't learn anything.
-- If you need to solve [ 3d = 15 ] tomorrow, you'll be just as clueless as you are today.
Here's the solution, and the method of finding it:
1). Write down the equation :
2b = 102). Divide each side of the equation by 2 :
b = 5Y = 2bx divide both sides by 2b Y/2b = x
Here are the steps: -- Write the equation. -- Combine like terms on the right side. -- Add 10 to each side of the equation. -- Subtract 2b from each side. -- Divide each side by 2 .
(a+d)/2b=c
5b - 7 = 2b +55b-2b-7=2b -2b +5 subtract 2b from each side to get b on one side3b-7=53b-7+7 = 5+7 now add 7 to both sides to get the numbers on one side3b = 123b/3 = 12/3 finally divide both sides by 3 to solve for bb = 4
Whan a = 2 and b = 6, 5a + 2b = 5*2 + 2*6 = 10 + 12 = 22
If: a = 2b+c Then: a-c = 2b And: b = (a-c)/2
This is the same as: 13-2b = 21 -2b = 21-13 -2b = 8 b = -4
a = 2b + c then a - 2b = c ie c = a - 2b
c= a-2b
a-2b=c
Y = 2bx divide both sides by 2b Y/2b = x
c= (a+d) / 2b
3a + 2b = (3*6) + (2*5) = 18 + 10 = 283a+2b= (3x6)+(2x5)= 18+10=28
Here are the steps: -- Write the equation. -- Combine like terms on the right side. -- Add 10 to each side of the equation. -- Subtract 2b from each side. -- Divide each side by 2 .
A = 2b + cSubtract 'c' from each side:A - c = 2bDivide each side by 2:b = 1/2 (A - c)
a=2b 4b=6c becomes 2b=3c a=3c
(a+d)/2b=c