1 and 2 Step Equations
x = 12
What is the sum of the angles in a triangle?
180 degrees
3w = w
w = 0
When does 0 = 0?
What solution type is this?
Always
Infinite solutions
solve for y
2x + y = 3
y = -2x +3
or
y = 3 - 2x
2x + x - 12 - 2x = 9
x = 21
A triangle has angles measuring
x
2x
3x
What is the value of x?
x = 30 degrees
4r - 16 = 8r
When does -4 = 7?
What solution type is this?
Never
No solution
solve for h
V = lwh
h = V / lw
5x – 7 = 28
x = 7
A triangle has angles measuring:
45
x + 45
x
What is the value of x?
x = 45 degrees
4(3q – 2) = 16q
q = -2
Does the following equation have no solution or infinite solutions?
-h + 4 = -h + 9
No solution
s = p - 0.2t
p = s + 0.2t
1.5x + 1.3x = -8.4
x = -3
A triangle has angles measuring
60
x + 20
3x
What is the value of x?
x = 25 degrees
2(4x − 3) – 8 = 4 + 2x
x = 3
t + 3t - 7 = 4t - 7
Infinite solutions
solve for s
Z = sL
s = Z / L
30 = −5(6x + 6)
x = -2
A quadrilateral (4 sided shape) has angles measuring:
1.4x
x + 35
x - 5
x
What is the value of x? (total number of degrees is 360)
x = 75 degrees
− (4x + 3) + 2(6x + 1) = 14
x = 15/8
0.25(n - 6) = 0.25n - 1.5
Infinite solutions
solve for T
PV = nRT
T = PV / nR