Solve the system by using Gaussian elimination or Gauss-Jordan elimination.+2x7y = −15+x4y = −11

Use substitution to solve the system.+−2x5y = −27+2y11 = x

se Gauss-Jordan elimination to solve the following linear system.x2 + x3 − 2x4 = −8x1 + 2x2 − x3 − x4 = 22x1 + 4x2 + x3 − 3x4 = −7x1 + 3x2 − 7x3 − x4 = 16

Instructions: Solve each system by substitution. Make sure to check your answer BEFORE submitting. State your answer as an ordered pair. DO NOT include spaces in your answer.System 1y=−5x+13𝑦=−5𝑥+13y=−2x+7𝑦=−2𝑥+7(( ,, ))System 2y=−4x−12𝑦=−4𝑥−12y=7x+21𝑦=7𝑥+21(( ,, )

Find the x solution of the following system of equations.x - 2y = 4;-3x + 5y = -7a.-5b.-6c.5d.6

Find the solution of the system of equations.minus, 7, x, minus, 4, y, equals, minus, 44−7x−4y=−447, x, minus, 3, y, equals, 167x−3y=16