Answer:
x = -1 and y = -1
Step-by-step explanation:
Solve 3x+3y=−6;−x+y=0
Steps:
I will solve your system by substitution.
−x+y=0;3x+3y=−6
Step: Solve−x+y=0for y:
−x+y+x=0+x(Add x to both sides)
y=x
Step: Substitutexforyin3x+3y=−6:
3x+3y=−6
3x+3x=−6
6x=−6(Simplify both sides of the equation)
6x
6
=
−6
6
(Divide both sides by 6)
x=−1
Step: Substitute−1forxiny=x:
y=x
y=−1
Answer:
x=−1 and y=−1
Answer, 2.865.00
Step-by-step explanation: o D.7 x - OB. 8 -OA x- 14 x 12 + 84498 + DXE X
Answer:
$13.14
Step-by-step explanation:
60 mi/1 hour = x mi/1.5 hours
x = 90 mi to drive to work
25 mi/1 gallon = 90 mi/y gallons
y = 3.6 gallons to get to work
$3.65/1 gallon = $z/3.6 gallons
z = $13.14
Answer: Area = Length times width
Area = (3w + 7) x w
Area = 3(3 x 3 + 7) x 3 = 48 m^2
Step-by-step explanation:
Area = Length times width
Area = (3w + 7) x w
Area = 3(3 x 3 + 7) x 3 = 48 m^2
