1) 5x - 9 = 3x + 15x - 3x = 1 + 92x = 10x = 5
2) -2y + 14 = 8y - 63-2y - 8y = -63 - 14-10y = -77y = 7.7
3) (y + 8) * ( -7) = 14-7y - 56 = 14-7y = 70y = -10
4) 11x = -4x11x + 4x = 015x = 0x = 0
5) 0.8x + 16 = 20 + 0.7x0.8x - 0.7x = 20 - 160.1x = 4x = 40
6) 6(x - 1) = 126x - 6 = 126x = 18x = 3
7) 3/7 - 1/(4x) = 5 3/73/7 + 1/(4x) = -38/71/(4x) = -38/7 - 3/71/(4x) = -41/74x = -7/41x = -7/164
1) 5x - 9 = 3x + 1
5x - 3x = 1 + 9
2x = 10
x = 5
2) -2y + 14 = 8y - 63
-2y - 8y = -63 - 14
-10y = -77
y = 7.7
3) (y + 8) * ( -7) = 14
-7y - 56 = 14
-7y = 70
y = -10
4) 11x = -4x
11x + 4x = 0
15x = 0
x = 0
5) 0.8x + 16 = 20 + 0.7x
0.8x - 0.7x = 20 - 16
0.1x = 4
x = 40
6) 6(x - 1) = 12
6x - 6 = 12
6x = 18
x = 3
7) 3/7 - 1/(4x) = 5 3/7
3/7 + 1/(4x) = -38/7
1/(4x) = -38/7 - 3/7
1/(4x) = -41/7
4x = -7/41
x = -7/164