X+4x+30=80

find value of x

x = 10

Step-by-step explanation:

Add like terms:

x + 4x + 30 = 80

5x + 30 = 80

Then, subtract 30 from both sides:

5x + 30 = 80

     -30     -30

5x = 50

Finally divide both sides by 5:

5x = 50

x = 10

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step-by-step explanation:

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