3x + y = 8. -x - 2y = -10
1 answer:
Assumin we solving for the intersection or solution
elimination, ya
eliminate y's
multiply firs equation by 2 and add to 2nd
we get
6x+2y=16
<u>-x-2y=-10 +</u>
5x+0y=6
5x=6
divide both sides by 5
x=6/5
sub back
-x-2y=-10
-6/5-2y=-10
times both sides by 5
-6-10y=-50
add 6 to both sides
-10y=-44
divide both sides by -10
y=44/10
y=22/5
(x,y)
or
(1.2,4.4)
elimination, ya
eliminate y's
multiply firs equation by 2 and add to 2nd
we get
6x+2y=16
<u>-x-2y=-10 +</u>
5x+0y=6
5x=6
divide both sides by 5
x=6/5
sub back
-x-2y=-10
-6/5-2y=-10
times both sides by 5
-6-10y=-50
add 6 to both sides
-10y=-44
divide both sides by -10
y=44/10
y=22/5
(x,y)
or
(1.2,4.4)
You might be interested in
Answer:
The Factor of expression using the greatest common factor is
Step-by-step explanation:
Consider the provide expression.
We need to Factor the expression using the greatest common factor.
First look at the coefficients of the variable.
The coefficients are the factor of 2.
Variable p is the greatest common factor in the provided expression.
Hence, the Factor of expression using the greatest common factor is .