To solve the first equation:
2(3x + 2y) + 9 = 4x + 216x + 4y + 9 = 4x + 216x + 4y - 4x = 21 - 92x + 4y = 12Divide by 2 to simplify:x + 2y = 6
To solve the second equation:
2x + 10 = 3 - (6x + 5y)2x + 10 = 3 - 6x - 5y2x + 6x + 5y = 3 - 108x + 5y = -7
To solve the first equation:
2(3x + 2y) + 9 = 4x + 21
6x + 4y + 9 = 4x + 21
6x + 4y - 4x = 21 - 9
2x + 4y = 12
Divide by 2 to simplify:
x + 2y = 6
To solve the second equation:
2x + 10 = 3 - (6x + 5y)
2x + 10 = 3 - 6x - 5y
2x + 6x + 5y = 3 - 10
8x + 5y = -7