Answer
$x = 10$
Work Step by Step
$5x - 4 = 26 + 2x$
$5x - 4 - 2x = 26 + 2x - 2x$
$5x - 2x - 4 = 26$
$3x - 4 = 26$
$3x - 4 + 4 = 26 + 4$
$3x = 30$
$3x\div3 = 30\div3$
$x = 10$
Check:
$5(10) - 4 = 26 + 2(10)$
$50 - 4 = 26 + 20$
$46 = 46$