8x - 5x + 15 = 18
8x - 5x = 3
3x = 3
x = 1
A literal equation<span> is, simply put, an equation that has a lot of letters or variables.
example :
A = bh
Lets solve it for b.
A = bh
A/h = bh / h
A/h = b
Now lets say we have equation in one variable like 10 = 5x
we can find x simply by, x = 10 / 5 = 2
The way of solving it similar. The difference is literal equation have more variables, you solve for certain variable in terms of another variables while in one variable you get the direct number.
</span>
Answer:
B!
Step-by-step explanation:
we know that (x-5) and (y-6) must add up to 129 because 180-51 is 129
now let's plug in the values to see
51-5= 66 63-6 = 57
57+66 is 123, not this one, let's repeat the same step
77-5 is 72, 63-6 is 57, these added is 129
