Solve the equation for x 80 = 5x + 2x -10

x= 12.857

Step-by-step explanation:

80=5x + 2x -10  combine like terms

80= 7x -10 distributed 10 to both sides

90 =7x  divide both sides by 7

12.857 =x    

x = 12 6/7 or 90/7

Step-by-step explanation:

5x + 2x - 10 = 80

^^add you like terms (5x + 2x)

7x - 10 = 80

add -10 to both sides so it cancels out

7x = 90

divide 7 from both sides to get x by itself

x = 12 6/7

i think is 3 and 6. this took me 10 min to think.hope to and hope that my answer is brainliest.(follow me )

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x