Solve system of equations by elimination. Show all your steps. - 3x + 5y = -11
3x + 7y = -1

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

]supplementary angles are two angles that add up to . • complementary angles are two angles that add up to degrees. • adjacent angles share a and a • congruent angles have the measure. • an triangle has one angle that is greater than 90 degrees. • a triangle with angles 45°, 45°, and 90° would be a triangle

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.