Answer:
Step-by-step explanation:
answer no 3:
1] Factor out the common term 2.
2(3x+y) = -26
2] Divide both sides by 2.
3x+y= -26/2
3x+y = − 13
3]Subtract y from both sides.
3x = - 13-y
4] Divide both sides by 3.
x = -13-y/3
Part 2:-
Add 6y to both sides.
x=21+6y
x=21+6y
Answer:
51
Step-by-step explanation:
51×4=204
500-204=296
Answer:
n= 1/9
Step-by-step explanation:
3/n 3/6=3/2
Simplifies to
1/6n = 3/2
Cross-multiply.
1/6n = 3/2 - (1)*(2)=3*6n
2=18n
Flip the equation
18n=2
Divide both sides by 18
18n/18 = 2/18
n=1/9
Hope it's right :)
From eqn 3,
2z = 10
z = 5
Substitute z = 5 into eqn 1&2
x + 2y + 5 = 9
x + 2y = 4
x - y + 3(5) = 13
x - y = -2
Eqn 1 - eqn 2:
x + 2y - (x - y) = 4 - (-2)
3y = 6
y = 2
Substitute y = 2 into eqn 1
x + 2(2) = 4
x = 0
Thus, x = 0, y = 2, z = 5 (option 3)
