Which value of x makes this equation true? -12x - 2(x+9) = 5(x+4)
2 answers:
Answer:
x = - 2
Step-by-step explanation:
-12x - 2(x + 9) = 5(x + 4)
-12x - 2x - 18 = 5x + 20
-14x - 18 = 5x + 20
-14x - 5x = 20 + 18
-19x = 38
x = -2
x = -2
−12x−2(x+9)=5(x+4)
Use the distributive property to multiply −2 by x+9.
−12x−2x−18=5(x+4)
Combine −12x and −2x to get −14x.
−14x−18=5(x+4)
Use the distributive property to multiply 5 by x+4.
−14x−18=5x+20
Subtract 5x from both sides.
−14x−18−5x=20
Combine −14x and −5x to get −19x.
−19x−18=20
Add 18 to both sides.
−19x=20+18
Add 20 and 18 to get 38.
−19x=38
Divide both sides by −19.
x=
−19
38
Divide 38 by −19 to get −2.
x=−2
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180-2(55)-x=0
180-110-x=0
70-x=0
-x=-70
x=70°
Answer:
The numerator factors to

The denomenator factors to

Answer:
c/d = 6
Step-by-step explanation:
Use the second equation.
c - 6d = 0
Add 6d to both sides.
c = 6d
Divide both sides by d.
c/d = 6
70 X 10 =700
Therefore, it is 10 times greater than 70.