Answer:
B and D
Step-by-step explanation:
First, you have to solve the first equation. (Hint: you use the distributive property.)
2(5x + 2 + x)
10x + 4 + 2x
12x + 4
We can already see that B is correct and A is incorrect.
Now to solve C and D.
C = 2(5x + 3)
10x + 6
This is incorrect.
D = 2(6x + 2)
12x + 4
This is correct.
10,000,000+2,000,000+400,000+30,000+0,000+000+00+0 :)
Answer:
x=3, y= -2
Step-by-step explanation:
Multiplying :
(4x+3y =6)*-3
(3x+5y =-1)*4
-12x -9y= -18
12x+20y= -4
Add the equations
20y-9y = -4-18
11y = -22
y= -22/11 = -2
3x +5* -2= -1
3x -10 = -1
3x = 10-1
x= 9/3 =3
