-4x-(5-3x)=-11/ 6x-7=3x=5 / 9-2(x-4)=5 can u help me ?

Question

i need this so bad cause i need extra credit for math i tried but i just dont get it

Answer 1

I assume you mean there are 3 equations?

-4x - (5 - 3x) = -11

Distribute the minus sign:

-4x - 5 + 3x = -11

Combine the x terms:

-x - 5 = -11

Add 5 to both sides:

-x - 5 + 5 = -11 + 5

Combine:

-x = -6

Divide by negative 1:

-x/-1 = -6/-1

x = 6

=======================

I'm going to assume you mean that second = to be a -:

6x - 7 = 3x - 5

Subtract 3x from both sides:

6x - 7 - 3x = 3x - 5 - 3x

Combine the x terms:

3x - 7 = -5

Add 7 to both sides:

3x - 7 + 7 = -5 + 7

Combine:

3x = 2

Divide both sides by 3:

3x/3 = 2/3

x = 2/3

===================================

9 - 2(x - 4) = 5

Distribute the -2;

9 - 2x + 8 = 5

Combine the 9 and 8:

-2x + 17 = 5

Subtract 17 from both sides:

-2x + 17 - 17 = 5 - 17

Combine:

-2x = -12

Divide both sides by -2:

-2x/-2 = -12/-2

x = 6