is (8, 7) a solution to this system of equations?\n16x - 18y = 2\n20x - 20y = 20\nyes\nno

Explanation:

Step1: Substitute into first equation

Substitute (x = 8) and (y=7) into (16x - 18y=2). [16\times8-18\times7=128 - 126=2] The left - hand side equals the right - hand side for the first equation.

Step2: Substitute into second equation

Substitute (x = 8) and (y = 7) into (20x-20y = 20). [20\times8-20\times7=20\times(8 - 7)=20\times1 = 20] The left - hand side equals the right - hand side for the second equation.

Answer:

yes