Question

equations with variables on both sides , evaluate each equation 2x + 1 = x + 11a + 2 = 5 + 4a7y + 25 = 2y n + 11 = 2n 7 - 4c = 3c - 7 4 - 3j = 6j - 5 9d - 9 =3d - 3 f -4 = 6f + 26 -2k + 3 = 5k + 24 5a -3 = 8a + 6

Answer 1

1. 2x + 1 = x + 11

subtract x from both sides

2x - x + 1 = x - x + 11

x + 1 = 11

subtract 1 form both sides

x + 1 - 1 = 11 -1

x = 10

2. a + 2 = 5 + 4a

subtract a from both sides

a - a + 2 = 5 + 4a - a

2 = 5 + 3a

subtract 5 from both sides

2 - 5 = 5 - 5 + 3a

3a = -3

divide both sides by 3

a = -1