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B evaluates to 8. Here is how the formula may look:
15 = 7 + b
Now we have to isolate the b. The easiest way is to subtract the 7. Remember that what we do to one side, we must do to the other side.
15 - 7 = 7 + b - 7
It is time to simplify. On the left we know that 15 minus 7 is 8. On the right, the +7 and the -7 cancel each other out and can all be removed. That leaves b.
8 = b
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4b plus 3 equals 15 solving two step equations?
4b+3=15 4b=15-3 b=(15-3)/4 b=3
How do I solve for y the linear equations 8x-7y equals 7 and 7x equals 8y equals 8?
8x - 7y = 7 (A)7x + 8y = 8 (B)7*(A): 56x - 49y = 498*(B): 56x + 64y = 648*(B)-7*(A): (64+49)*y = 64-49=> 113y = 15=> y = 15/113
How you solve b plus 7 equals 18?
b + 7 = 18 subtract 7 from each side b + 7 - 7 = 18 - 7 b = 11 ----------------check in original equation 11 + 7 = 18 18 = 18 --------------checks
How do you solve for x when a plus x equals b?
x=b-a
A squared plus b squared equals c squared?
This is the common form of the Pythagorean Theorem. It describes the relationship between the two legs of a right triangle and the hypotenuse.
