Question

What is 4x+2(3x7)= if x=5

Answer 1

$4x + 2(3\cdot7) = ?$

Now we must solve this equation if x = 5. To do so we must substitute:

$4(5)+2(3\cdot7)$

Using PEMDAS we will solve for the parenthesis first.

$4(5)+2(21)$

Multiply:

$20+(42)$

Add:

$20+42=62$

Final answer: 62