Order of Operations
One-Step Equations
Two-Step Equations
Two-Variable Equation
Writing Equations
100
9-5*8
What is -31
100
-10=6y
What is -1.666667
100
2t=300
What is 150
100
y=x=5 if x=-3
What is y=2 : (-3,2)
100
First, add the constant number (5) to both sides. Now divide the coefficient (2) to 48 to get [x=24]
What is 2x-5=53
200
6/9*3+8
What is 10
200
x/3=3
What is 9
200
200-3n=9
What is 63.66666667
200
y=-3x-1 if y= -7
What is x=2 : (2,-7)
200
First, to make it easy flip the problem to get [9t+3=23]. Now substract the constant (3) on both sides. Then the inverse operation of the coefficient to 20 to get [x=2.2]
What is 23=9t+3
300
8/9*9-72+9
What is -55
300
18+5=-1
What is 18
300
2f+6=19
What is 6.5
300
y=x+6 if x=-4
What is y=2 : (-4,2)
300
First, since there is no operation before the constant, you subtract it from both sides. Now since you are subtracting a negative, you may chose to add a postive, same idea. (+8t). But you still must do the inverse opperation so subtract positivie eight from 75 to get [x=67]
What is 9-(-8t)=84
400
8-2/2
What is 7
400
c-7=-10
What is -6
400
53+4c=21
What is -8
400
y=-4x-2 if y=-8
What is x=1.5 : (1.5,-8)
400
v=23
What is v-9=14
500
9-[2*3-12/(2*3)]
What is 3
500
55/x=11
What is t=5
500
c/-3+5=7
What is -6
500
y=x/3-6 (two solutions)
What is y=-3 (9,-3) / y=-4 (6,-4)
500
16b*2+60b-100
What is 92b
M
e
n
u