Answer:
x = 26.5
Step-by-step explanation:
Step 1: Write equation
(t + 10.5) + 2t + 90 = 180
Step 2: Solve for t
Combine like terms: 3t + 100.5 = 180
Subtract 100.5 on both sides: 3t = 79.5
Divide both sides by 3: t = 26.5
Step 3: Check
Plug in x to verify it's a solution.
Substitute: (26.5 + 10.5) + 2(26.5) + 90 = 180
Parenthesis: 37 + 56 + 90 = 180
Add: 180 = 180
∴ x = 26.5
