Question

what value of x makes the expression x + 4 equivalent to the expression 4 + 5? the expression x + 4 = 4 + 5 when x = .

Explanation:

Step1: Simplify the right-hand side

$4+5=9$

Step2: Isolate $x$ by subtracting 4

$x = 9 - 4$

Step3: Calculate the value of $x$

$x=5$

Answer:

$5$