Solve for x x+4(3.5x)=15

$x + 4 (3.5 x) = 15$

Simplify $x + 4 \cdot (3.5 x)$ .

Multiply $3.5$ by $4$ .

$x + 14 x = 15$

Add $x$ and $14 x$ .

$15 x = 15$

Divide each term in $15 x = 15$ by $15$ and simplify.

Divide each term in $15 x = 15$ by $15$ .

$\frac{15 x}{15} = \frac{15}{15}$

Simplify the left side.

Cancel the common factor of $15$ .

Cancel the common factor.

$\frac{15 x}{15} = \frac{15}{15}$

Divide $x$ by $1$ .

$x = \frac{15}{15}$

Simplify the right side.

Divide $15$ by $15$ .

$x = 1$