"The sum of 4 and x is 10" in mathematical symbols is?

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Answer 1 · 2018-05-08T03:19:14

$4 + x = 10$ $4+x=10$

The word sum means to add.

$4 + x$ $4+x$

The word is means equal to.

$4 + x = 10$ $4+x=10$

We can solve this for $x$ $x$ by subtracting $4$ $4$ from both sides.

$4 - 4 + x = 10 - 4$ $4-4+x=10-4$

Cancel $4$ $4$ on the left-hand side.

$color(red)cancel(color(black)(4))-color(red)cancel(color(black)(4))+x=10-4$

Simplify.

$x=6$