Question

9x-(2x-3)=3(x+1)+4x
Me ayudan
6(r+10)+3 (r-7)=-45

Answer 1

1)9x-2x+3=3x+3+4x
9x-2x-3x-4x=3-3
0x=0
x=0

2) 6r+60+3r-21=-45
6r+3r=-45-60+21
9r=-105+21
9r= -84
r=-9,3