How do u solve this step by step and also pls don’t answer unnecessarily

Step-by-step explanation:

D) a) 2x = x +4

Subtract 'x' form both sides

2x - x = x - x + 4

x = 4

b) 3x = 2x + 3

Subtract '2x form both sides

3x - 2x = 2x - 2x +3

x = 3

c) 6x = 2x + 8

Subtract '2x' from both sides

6x - 2x = 8

4x = 8

Divide both sides by 4

4x/4x =8/4

x = 2

e) 5x = 12 - x

Add 'x' to both sides

5x +x = 12 - x + x

6x = 12

Divide both sides by x

6x/6 =12/6

x = 2

E) k) 15x + 4 = 10x + 19

Subtract 10x from both sides

15x - 10x + 4 = 10x - 10x + 19

5x + 4 = 19

Subtract 4 form both sides

5x + 4 - 4 = 19 - 4

5x = 15

Divide both sides by 5

5x/5= 15/5

x = 3

$20.01

step-by-step explanation:

the sale price is (1.00 - 0.77)($87), or 0.23($87), or $20.01.

fa tha first one you gonna add y to both sides

it look like this

x-y+y=6+y

x=y+6

therefore your answer is

x =y+6

fa tha second one

you gonna flip tha equation

it gonna look like x-4y=y

then add 4 to both sides

it gonna look like tha

x-4 +4 =y +4

so therefore tha answer is x=y+4

step-by-step explanation: