Solve the following system by the substitution method. {2x-7y=12 {-x+3.5y=-6

y=1

Step-by-step explanation:

hey! I know that I’m late but I decided to do this still, and you should definitly look at my work and understand how to do this more. THIS WILL NOT GO AWAY! sorry I’m late tho but just make sure you got this down. the Work and steps are in the picture!

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