-5x + 4 - x -1
Identify the terms, like terms, coefficients, and constants in each expression.

terms: -5x, 4, -x, -1

like terms: 4 and -1, -5x and -x

coefficients: -5 and -1

constants: 4 and 1

(depending on your teacher, the - could not be considered part of the coeficient, meaning the coefficents would be -5 and 1, as well as just x, not -x)

arrange the equations with like terms in columns.

analyze the coefficients of x or y.

add the equations and solve for the remaining variable.

substitute the value into either equation and solve.

check the solution.

step-by-step explanation: