SOLUTION: The problem I am working on is : 3(x + 2) � 4x = 3 The way I was working it out is 3(x2)-4x=3 6x-4x=3 But I know this math isn't right. What am I doing wrong?

Question 807455: The problem I am working on is :
3(x + 2) � 4x = 3

The way I was working it out is
3(x2)-4x=3
6x-4x=3
But I know this math isn't right.
What am I doing wrong?

Answer by Cromlix(4381) (Show Source): You can put this solution on YOUR website!
3(x + 2) � 4x = 3
Multiply (x + 2) by 3
3x + 6 - 4x = 3
Collect like terms remembering to
change signs as you cross the = sign.
3x - 4x = 3 - 6
-x = -3
Multiply both sides by -1
x = 3
Proof:-
3(x + 2) � 4x = 3
3(3 + 2) - 4(3) = 3
3(5) - 12 = 3
15 - 12 = 3
Hope this helps.
:-)

RELATED QUESTIONS
how would I solve x/2 + x/3= 3/4 I know the least common denominator is 12 but I am... (answered by ewatrrr,mananth)

I am trying to figure out how to solve this math equation: 4x - (3x + 5) = -2 It... (answered by josgarithmetic,Shin123)

Hello! I am working on combining functions, and I have a problem. The problem is f(x)=... (answered by josgarithmetic)

I know when factoring the formula is ax^2(+-)bx(+-)c is the formula I should use. But,... (answered by josgarithmetic)

How do I solve this equation? graphing this equation y = -3/4x-3. Been working on it but... (answered by jim_thompson5910)

I need help working out... (answered by jim_thompson5910)

Having trouble figuring out how to factor this problem. Factor completely given that... (answered by MathLover1,greenestamps,MathTherapy,math_tutor2020,ikleyn,josgarithmetic)

Hi, my name is Bria. I am in 8th grade and right now I am working on Polynomials in... (answered by josgarithmetic)

This is not really a geometry question but it does pertain to areas. what is the area... (answered by Fombitz)