Question

How do you solve (x2)+1+(3x4)=−9?

Answer 1

Answer : x = - 0.714286

Step by step explanation :

$(x \times 2) + 1 + (3x \times 4) = - 9$

Use the commutative property to reorder the terms and then calculate the product by multiplying the numbers of curved bracket.

$= > 2x + 1 + (12x) = - 9$

When there is a "+" in front of the parenthesis the expression remains the same.

$= > 2x + 1 + 12x = - 9$

Collect the like terms by adding their coefficients and then add the numbers.

$= > 14x + 1 = - 9$

Move constant to the right side and change its sign.

$= > 14x = - 9 - 1$

Calculate the difference.

$= > 14x = - 10$

Divide both sides of the equation by 14.

$= > x = - \frac{5}{7}$

$= > x = - 0714286$