Need to talk to somebody pls

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

What is the value of x when x + 7 = 21?

Alarger number is double the sum of a smaller number. the larger number is 2 less than 3 times the smaller number. if y represents the larger number and x represents the smaller number, which equations model the situation