### Home > A2C > Chapter Ch10 > Lesson 10.1.1 > Problem 10-21

10-21.

Eliminate the denominator in both equations and simplify them before solving.

2*z* + 2*y* + *z* − *y* = 12

44*z* − 11*y* + 10*z* + 4*y* = 66

3*z* + *y* = 12

54*z* − 7*y* = 66

10-21.

Eliminate the denominator in both equations and simplify them before solving.

2*z* + 2*y* + *z* − *y* = 12

44*z* − 11*y* + 10*z* + 4*y* = 66

3*z* + *y* = 12

54*z* − 7*y* = 66