Answer:
Step-by-step explanation:
j) (2g+9h-5)-(6g-4h+2); g=-2 ; h=5
(2*(-2)+9*5-5)-(6*(-2)-4*5+2)
(-4+45-5)-(-12-20+2)
36-(-32+2)
36-(-30)
36+30
66
