Answer:
Step-by-step explanation:
- 7 + 3x - 12x = 3x + 1
- 7 - 9x = 3x + 1
- 3x + 9x = 7 - 1
- 12x = 6
- x = 6/12
- x = 1/2
It has one solution
Answer:
Step-by-step explanation:
120 = y. the ratio is 3:2
80/2 is 40
40 times 3 is 120
120:80 = 3:2
A negative slope makes a line go down to the right.
The line C goes up to the right, so that is not it.
slope = -5 = rise/run = -5/1
For every 5 the y-coordinate goes down, the x-coordinate goes 1 to the right.
Only line B goes down 5 and right 1, so the answer is line B.
Answer: Line B
Answer: x=15/19 =0.789
Step-by-step explanation: -12*x+1-(7*x-14)=0
-19x+15 = 0
Subtract 15 from both sides of the equation :
-19x = -15
Multiply both sides of the equation by (-1) : 19x = 15
Divide both sides of the equation by 19:
x = 15/19 = 0.789
x = 15/19 = 0.789
