Answer:
see below
Step-by-step explanation:
a) 2(x - 1) = 4 (x + 2)
Distribute
2x-2 = 4x+8
Subtract 2x from each side
2x-2x-2 = 4x-2x +8
-2 = 2x+8
Subtract 8 from each side
-2-8 = 2x+8-8
-10=2x
Divide each side by 2
-10/2 = 2x/2
-5 =x
b)(3 - x) (x + 2) = 0
We can use the zero product property
3-x = 0 x+2= 0
3-x+x=0+x x+2-2=0-2
3=x x=-2
Answer:
See attachment.
Step-by-step explanation:
The given system is
The first line is already graphed.
We want to graph
We can do this by plotting two points and drawing a straight line through them.
When we choose x=0, we substitute into the equation and solve for y.
So we plot (0,-4)
Also, when y=0, we substitute and solve for x.
So we plot the point (-4,0)
We now use a straight edge to draw a straight line through these two points to obtain the graph shown in the attachment.
Answer:
x=6÷5 this is answer we can also divide it in decimals also as 1.2
2 and 2/3 can be rewritten as 2+2/3, and since to add fractions you need the same denominator, change 2/1 into 6/3 ((2*3)/1*3) and that adds to 2/3 to make 8/3