Answer:
The solution is (1,2)
Step-by-step explanation:
- 2x - y = - 4
x + 2y = 5
Multiply the second equation by 2 so we can eliminate x
2( x + 2y) = 5*2
2x +4y = 10
Add this to the first equation
- 2x - y = - 4
2x +4y = 10
----------------------
3y = 6
Divide each side by 3
3y/3 = 6/3
y = 2
- 2x - y = - 4
x + 2y = 5
Multiply the first equation by 2 to eliminate y
2(- 2x - y) = - 4*2
-4x -2y = -8
Add this to the second equation
-4x -2y = -8
x + 2y = 5
------------------
-3x = -3
Divide by -3
-3x/-3 = -3/-3
x = 1
The solution is (1,2)
Answer:
-8
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
2x+2+x=−22
(2x+x)+(2)=−22(Combine Like Terms)
3x+2=−22
3x+2=−22
Step 2: Subtract 2 from both sides.
3x+2−2=−22−2
3x=−24
Step 3: Divide both sides by 3.
3x
3
=
−24
3
x=−8
Answer:
12*6*3=216
Step-by-step explanation:
First multiply !2 and 6 to get 72 .Then multiply 72 and 3 to get 216.
Answer:
use photomath brother
Step-by-step explanation:
you can find the answer like that
Answer:
x = 
Step-by-step explanation:
(x + 6 )^2 = 49
get rid of the square , by square rooting the 49
x + 6 = 
x = -6
x =
means + or - hence it could be -7 -6 = -1 ... or 7-6 = 1
therefore the answer is = or - 1
hence in terms of roots .. answer is :
