x-143=219. Y+204=354

To solve the equations, we'll find the values of \(x\) and \(Y\).

1. For the first equation: \[ x - 143 = 219 \] To isolate \(x\), add 143 to both sides: \[ x = 219 + 143 \] \[ x = 362 \]

2. For the second equation: \[ Y + 204 = 354 \] To isolate \(Y\), subtract 204 from both sides: \[ Y = 354 - 204 \] \[ Y = 150 \]

Thus, the solutions are: \[ x = 362 \] \[ Y = 150 \]