Step-by-step explanation:
(-6x +3y=9 )×4
( 10x+4y)×3
-24x +12y =36
30x+12y= -18
-24x+12y- (30x+12y)= 36-(-18)
-54x = 54
x= -1
by using 10x +4y = -6
apply x= -1
-10+4y= -6
4y= -6 +10
4y=4
y=1
so the answer is x=-1 and y= 1
We have such equation
1.25x=0.75x+50 /-0.75x (subtract 0.75 both sides)
1.25x-0.75x=0.75x-0.75x+50
0.5x=50 /*2 (multiply both sides times 2)
0.5x*2=50*2
x=100 - its the answer
Answer:
-4/3
Step-by-step explanation:
You can also use mathpapa it's a calculator that gives you the answer and solves it for you step by step.
please mark me brainliest :)
Answer:
D
Step-by-step explanation:
The quadratic formula:
where a is the coefficient of 
, b being the coefficient of 
and c being the constant.
Plug in the values:
Since 
The answer is:
Answer:
rgsf
Step-by-step explanation:
