Can you do these problems?

Question

1. 4x - (9 - 3x) = 8x - 1

2. -7 (1 - 4m) = 13 (2m - 3)

Can you please explain it through so I can understand it and do it myself?

Answer 1

Expand out the brackets

4x - 9 + 3x = 8x - 1

Combine Like terms

7x - 9 = 8x - 1

Subtract 8x from both sides

-x - 9 = -1

Add 9 on both sides

-x = 8

x = -8

2nd one

Expand brackets

-7 + 28m = 26m - 39

Subtract 26m from both sides

-7 + 2m = -39

Add 7 on both sides

2m = -32

Divide both sides by 2

m = -16

Answer 2

1) 4x - 9 -(-3x) = 8x - 1
4x - 9 + 3x = 8x - 1
The distributive property on both sides of the equation
7x - 9 - 7x = 8x - 1 -7x
Subtracting - 7x on both sides of the equation
-9 + 1 = 8x - 7x
-8 = x

2) -7(1 - 4m) = 13(2m - 3)
- 7 + 28m = 26m - 39
The distributive property on both sides of the equation
- 7 + 28m - 26m = 26m - 39 - 26m
Subtracting - 26m on both sides of the equation
- 7 + 2m = - 39
- 7 + 2m + 7 = - 39 + 7
Adding + 7 to both sides of the equation
2m = - 32
2m/2 = - 32/2
Dividing both sides of the equation by 2
m = - 16

Answer 3

4x - (9 - 3x) = 8x - 1
4x - 9 + 3x = 8x - 1
4x -8x + 3x = -1 + 9
-1x = 8
x = -8

-7 (1-4m) = 13 (2m-3)
-7 + 28m = 26m - 39
Now, try to do the rest...

Answer 4

1. 4x-9+3x=8x-1
7x-9=8x-1
-9+1=8x-7x
x= -8

2. -7+28m=26m-39
28m-26m= -39+7
2m= -32
m= -16

Answer 5

For #2
In math terms.
-7(1 - 4m)=13(2m - 3)
-7 - -28m= 13(2m - 3)
-7 + 28m= 13(2m - 3)
-7 + 28m= 26m - 39
-7 + 2m= -39
2m=-32
m=-16

Answer 6

4x-(9-3x)=8x-1 (expand brackets)
4x-9+3x=8x-1 (then put all the x's to one side and number to the other)
4x+3x-8x=9-1 (add together)
-x=8 (divide by negative 1)
x=-8

You should be able to do it with the other one now.

Answer 7

1.Please Parenteses
2.Excuse Exponents
3.My Multiplication
4.Dear Division
5.Aunt Addition
6.Sally Subtraction

Hope that helps. :)

Answer 8

4x-9+3x=8x-1
7x-9=8x-1
-8=x
x=-8

-7+28m=26m-39
32=-2x
x=-16