Answer:
x = 10
Step-by-step explanation:
Okay so the equation looks like this: (9x – 16)+(3x + 11)+(7x – 5)=180, this equation is really long at the moment so were going to simplify by adding the x variables and the whole numbers together:
9x + 3x + 7x = 19x
-16 + 11 + (-5) = -10
the equation once simplified will look like this:
19x + (-10) = 180
Now were going to add 10 to -10 and 180 in order to get rid of the -10 in the equation:
19x + (-10) = 180
+10 +10
which would make the equation look like this:
19x = 190
now in order to segregate x from 19 we are going to have to divide 19 from 19x and 190:
19x/19 = 190/19
and when we do we get:
x = 10
Now to check it:
(9(10) – 16)+(3(10) + 11)+(7(10) – 5)
(90 - 16) + (30 + 11) + (70 - 5)
74 + 41 + 65 = 180
