Question

Resolva a expressão 3ax+7bx+9z-2xb -4xa considere: a = 0, b = 2, x = 7, z = 2.​

Answer 1

$3ax+7bx+9z-2xb -4xa \to a = 0, b = 2, x = 7, z = 2$

$0+7bx+9z-2xb -4xa$

$0+68+9z-2xb-4xa$

$68+9z-2xb-4xa$

$68+18-2xb-4xa$

$86-2xb-4xa$

$86-28-4xa$

$58-4xa$

$58-0$

$58$