Finite Math Examples

$78 + 69 + x = 70$

Step 1

Add $78$ and $69$ .

$147 + x = 70$

Step 2

Move all terms not containing $x$ to the right side of the equation.

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Step 2.1

Subtract $147$ from both sides of the equation.

$x = 70 - 147$

Step 2.2

Subtract $147$ from $70$ .

$x = - 77$