An architect is designing a new library

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

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

Solve the following simultaneous equation by using an algebraic method (either substitution or elimination) 2x + 3y=-4 4x-y=11