10 ( x - 7 ) = 8 ( x - 4 ) + x
10x - 70 = 8x - 32 + x
10x - 70 = 9x - 32
10x - 9x = - 32 + 70
x = 38
Vậy x = 38
10x -70=8x -32 +x
10x -70=9x -32
10x -9x= 70-32
x=38
10x - 10*7 = 8x - 4*8 + x
10x - 70 = 9x - 32
10x - 9x = -32 + 70
x = 38
Vậy x = 38
10(x-7)=8(x-4)+x
10.x-10.7=8.x-8.4+x
10x-70=8x-24+x
10x-70=9x-24
10x-9x=(-24)+70
x=46
10( x - 7 ) = 8( x - 4 ) + x
=>10x - 7 = 8x - 32 + x
=>10x - 70 = 9x - 32
=>10x - 9x = -32 + 70
=> x = +( 70 - 32 ) <=> x = 38