SOLUTION: I need help on this problem i don't understand how to do it. 2(-x)+3(-x)+x+8=2(-x)

Question 248045: I need help on this problem i don't understand how to do it.
2(-x)+3(-x)+x+8=2(-x)
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
2(-x)+3(-x)+x+8=2(-x)
we carefully go through, perform the functions needed and remove the parenthese.
2(-x)=-2x
3(-x)=-3x
2(-x)=-2x
so we put them all together and
we have
-2x-3x+x+8=-2x
now we add them up
-2x-3x=-5x
-5x+x=-4x
so now we have -4x+8=-2x
add 4x to both sides
-4x+4x=0
so on the left we have
0+8-2x
8=-2x
divide both sides by -2
8/-2=x
8/-2 = -(8/2)=-(4)
so now we have
-4=x
we are finished

RELATED QUESTIONS
my math teacher taught us how to do this but i don't understand (3,2), y = x + 5 (answered by josgarithmetic)

Can you help me with this problem. I don't know how to solve it.... (answered by CubeyThePenguin)

f(x)=3X+2 and g(x)=-2X+1 find g(f(-2)) I don't understand how to solve this... (answered by ikleyn)

My paper says only "Algebra Applications with Angles" lines angles and triangles. I... (answered by cleomenius)

I really need help on vertex forms and standard form parabolas. I understand how to get... (answered by stanbon)

x= P(x) = 0 0.68 1 0.2 2 0.06 3 (answered by Boreal,math_tutor2020)

Given f(x) = x^2 +3, find and simplify the difference quotient ([f(x+h) - f(x)])/h.... (answered by Theo,Alan3354)

I really need/would like to understand how to do this problem,... (answered by Alan3354)

How many ordered pairs of positive integers (x,y) satisfy the equation x=(4-x)/(y^2-x)? (answered by MathLover1,rothauserc,ikleyn)