Question

СРОчнооо!!!!!))) решите

Answer 1

1) 7x+10x/2(x-1)=17x/2(x-1)
2) 9a-4/4(a+2)
3) 8a²+15a²/12(a+1)=23a²/12(a+1)
4) 8x-15x/10(x-3)= -7x/10(x-3)