Algebraic Equations

Two equivalent equations are shown in the equation where a and b are both integers.

a(5x + 4) = b + 15x

What is the value of b?

The Mayor of Tallahassee, FL, is expecting an increase in population by 7.4% next year. If p represents the current population, which expression can the Mayor use to find the expected population for next year.

• 1.74p

• 1.074p

• p + 0.074

• 1 + 0.074

During a ten-month period, the cost of the bag of rice (r) increased and decreased at different times. The highest cost for a bag of rice is r increased by 34% and the lowest cost for a bag of rice decreased by 34%. Select all expressions describes the bag of rice (r) decreasing by 34%

• -0.34r

• r - 0.34r

• 0.66r

• 1.34r

• r - 1.34r

Which is an equation?

• 4x = 9

• 4x - 9

• 4x

• - 9

Which is an example of a variable in the following equation?
9g + 3 = 60

• 9

• g

• 3

• 60

A number in front of a variable

• numerical equation

• coefficient

• constant

• inequality

A letter that stands for a number

• constant

• coefficient

• variable

• expression

What does the number 5 represent in the following expression:
2x + 5 

• constant

• coefficient

• variable

• tacos

The parts of an equation or expression separated by plus or minus signs.

• Term

• Coefficient

• Variable

• Equation

What is the value of the coefficient?

−3x+6

• 3

• 6

• −3

• -3x