Final answer:
To solve the equation 6y + 4y + 90 = 360, combine like terms and isolate y by subtracting 90 from both sides. Divide both sides by 10 to find the value of y.
Step-by-step explanation:
To solve the equation 6y + 4y + 90 = 360, you need to combine like terms first. Add 6y and 4y to get 10y. Next, subtract 90 from both sides of the equation to isolate 10y. This gives you 10y + 90 - 90 = 360 - 90. Simplify to get 10y = 270. Now, to solve for y, divide both sides of the equation by 10. This gives you y = 27.