Evaluate Using the Given Value 2(5x-3y+7)-8+6x ; When x=4 and y=2 ?

$2 (5 x - 3 y + 7) - 8 + 6 x$ ; When $x = 4$ and $y = 2$ ?

Replace the variable $x$ with $4$ in the expression.

$2 (5 (4) - 3 y + 7) - 8 + 6 (4)$

Replace the variable $y$ with $2$ in the expression.

$2 (5 (4) - 3 \cdot 2 + 7) - 8 + 6 (4)$

Simplify each term.

Multiply $5$ by $4$ .

$2 (20 - 3 \cdot 2 + 7) - 8 + 6 (4)$

Multiply $- 3$ by $2$ .

$2 (20 - 6 + 7) - 8 + 6 (4)$

Subtract $6$ from $20$ .

$2 (14 + 7) - 8 + 6 (4)$

Add $14$ and $7$ .

$2 \cdot 21 - 8 + 6 (4)$

Multiply $2$ by $21$ .

$42 - 8 + 6 (4)$

Multiply $6$ by $4$ .

$42 - 8 + 24$

Simplify by adding and subtracting.

Subtract $8$ from $42$ .

$34 + 24$

Add $34$ and $24$ .

$58$