Answer:
Step-by-step explanation: (Equation 2) = 12(-12+9y/4) - 10y = -8
-144+108y/4 - 10y = -8
-144 + 108y - 40y/4 = -8
-144 + 108y - 40y = -32
108y - 40y = -32+144
68y = 112
Y= 1.64
2-4x+9y=14
12x-10y= -8
2-14+9y = 4x
-12 + 9y = 4x ( equation 3)
(Put in equation 2)
Answer:
-4x + 9y = 14 answer is x = [tex]\frac{9}{4}y+ \frac{-7}{2}[/tex]
12x - 10y = -8 answer is x = [tex]\frac{5}{6}y +\frac{-2}{3}[/tex]
Step-by-step explanation:
solve for x
-4x + 9y = 14
add -9y to both sides
-4x + 9y + -9y = 14 + -9y
-4x = -9y + 14
divide both sides by -4
-4x/-4 = -9y + 14/-4
Anwser
x = [tex]\frac{9}{4}y + \frac{-7}{2}[/tex]
solve for x
12x - 10y = -8
add 10y to both sides
12x - 10y + 10y = -8 + 10y
12x = 10y -8
Divide both sides by 12
12x/12 = 10y - 8/12
Anwser
x = [tex]\frac{5}{6}y +\frac{-2}{3}[/tex]
