What is the variable in the expression
5x + 2?
x
x + 5 = 12
x = 7
What is an angle that is less than 90 degrees called?
An acute angle
2x + 3 = 11
x = 4
-5 + 3?
-2
How many terms are in the expression
3a + 2b - 7?
Three
y - 8 = 10
y = 18
What is the name of a triangle with two equal sides?
An isosceles triangle
3y - 4 = 14
y = 6
4 - 9?
-5
What is the coefficient of y in the expression
8 - 4y?
-4
4a = 24
a = 6
What is the perimeter of a rectangle with a length of 8 cm and a width of 5 cm?
26 cm
a / 2 + 5 = 9
a = 8
-2 x 8?
-16
Simplify the expression
6m + 2m - 3m.
5m
b/3 = 9
b = 27
What is the area of a square with a side length of 7 cm?
49 cm²
5b - 10 = 25
b = 7
-20 / -4?
5
Simplify the expression
10p + 5 - 3p + 2.
7p + 7
c - 15 = -5
c = 10
How many degrees are in a straight line?
180 degrees
(c + 5) / 3 = 7
c = 16
-3 - (-7)?
4