To simplify 3a + 2b - 8a + b, we need to combine like terms. Like terms are terms that share common variables. In this expression, the two variables are terms with a and terms with b. The terms that have a are 3a and -8a. The terms that have b are 2b and b. Now we can separate them and simplify.
(3a - 8a) + (2b + b)
-5a + 3b
Answer:
51.2545454545
Step-by-step explanation:
Answer:
the equation: 2x+3+2x+3+2x= 36
x=5
the length of the congruent sides
15
the length of the third side
10
Step-by-step explanation:
i'll add this later hold on
Answer:
x=25
Step-by-step explanation:
DEF=180, Therefore GED+GEH+HEF=180
x+30+x+40+2x+10=180
Combine like terms:
4x+80=180
subtract 80 by both sides:
4x=100
divide by 4 on both sides
x=25
150mi/5hr =30 mi/hr so the answer is 30 mi/hr
