1-var equations
what is the first step in solving:
5x - 12 = 28
What is the next equation:
y = 3
2x + y = 11
2x + 3 = 11
What is the next step?
2x + 3y = 19
3x - 3y = 1
Add to eliminate y
Solve 3x < 9
x < 3
how many numbers in the 5 number summary?
5
what is the solution to:
2x = 6
x = 3
What is the next equation?
x = 2y
x + y = 12
2y + y =12
or 3y = 12
What is the next step?
2x + 3y = 19
-2x +7y = 11
Add to eliminate x
x > 1
what is another name for Q1
Lower Quartile
what did she do wrong?
3x + 7 = 22
+ 7 +7
3x = 29
should have subtracted 7
What is the next equation?
y = x + 4
2x + y = 19
3x + 4 = 19
or 2x + (x + 4) = 19
What is the next step?
2x - 4y =14
2x +5y = 4
x < -5
what is the median of:
3, 6, 7, 7, 11
7
Solve (x/3) = -2
x = -6
Solve:
y = 9
x + y = 12
x = 3, y = 9
What is the next step?
2x + 2y =12
3x - 4y = 4
multiply first equation by 2
Solve -5x > -20
x < 4
what is the minimum of:
3, 5, 7, 2, 12
2
Solve 3x - 2 = 19
x = 7
Solve:
y = 2x
3x + 2y = 14
x = 2
y = 4
What is the next step?
2x + 3y = 19
4x + y = 7
multiply first equation by -2, or
multiply second equation by -3
Solve 2x - 3 > 5
x > 4
What is the range of:
-2, 5, 9
11