Question

Solve the following equation and check your result:
$8x+4=3(x-1)+7$

Answer 1

$8x+4=3(x-1)+7$
$8x+4=3x+4$
$8x=3x$
$5x=0$
$x=0$
LHS $\Rightarrow 8x+4=8\times 0+4=4$
RHS $\Rightarrow 3(x-1)+7=3(0-1)+7=-3+7=4$
LHS $=$ RHS
Hence proved