To solve this equation, isolate the variable for which you are solving (b) on one side of the equation and put everything else on the other side.

-4b - 7x = 3b - 3x + 2
-4b = 3b - 3x + 2 + 7x
-4b - 3b = -3x + 2 + 7x
-7b = 4x + 2
b = \( \frac{4x + 2}{-7} \)
b = \( \frac{4x}{-7} \) + \( \frac{2}{-7} \)
b = -\(\frac{4}{7}\)x - \(\frac{2}{7}\)

A quadrilateral is a shape with four sides. The perimeter of a quadrilateral is the sum of the lengths of its four sides.

The surface area of a cube is (2 x length x width) + (2 x width x height) + (2 x length x height):

sa = 2lw + 2wh + 2lh
sa = (2 x 1 x 2) + (2 x 2 x 3) + (2 x 1 x 3)
sa = (4) + (12) + (6)
sa = 22

When solving an equation with two variables, replace the variables with the values given and then solve the now variable-free equation. (Remember order of operations, PEMDAS, Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.)

A circle is a figure in which each point around its perimeter is an equal distance from the center. The radius of a circle is the distance between the center and any point along its perimeter. A chord is a line segment that connects any two points along its perimeter. The diameter of a circle is the length of a chord that passes through the center of the circle and equals twice the circle's radius (2r).