Solving One Step Equations
x + 7 = 28
x = 21
-2x + 18 = -4
x = 11
14x - 6 - 11x = 21
x = 9
-4x + 10 = 6x - 40
x = 5
The sum of two numbers is 180. Their difference is 60. Find the two numbers.
120 and 60
-25 = x - 12
x = -13
-56 = 24 - 5x
x = 16
-6(2x + 3) = 42
x = -5
15x + 24 = 8(10 + 3x) - 2
x = -6
Two brothers are playing a trivia game as a team. Mario scored 150 more points than Luigi. As a team they got 3500 points. How many points did each brother earn?
Mario 1825 points
Luigi 1675 points
-8x = 96
x = -12
x/6 + 25 = 13
x = -72
-14 = 6x - 8(x+3)
x = -5
3(12x + 3) = 6(7x + 1) - 3
x = 1
Sam, Clover and Alex play on a soccer team. Sam scored 5 more goals than Alex while Clover scored half as many goals as Sam. The 3 girls scored 45 goals in total. How many goals did each girl score?
Sam 20 goals
Alex 15 goals
Clover 10 goals
22 = x/-4
x = -88
38 - x/5 = -12
x = 250
-2 = 11 + 3(3x - 5) - 7x
x = 1
-3(2.5x - 1) +20.2 = -35.475 -5x
x = 23.47
Michael is twice as old as his cousin Josh. The sum of their ages is 36. How old are the two cousins?
Michael 24 years old
Josh 12 years old
-88 = -23 + x
x = -65
-300 = -62 - 7x
x = 34
19 - 0.25(x + 8) - x = 2
x = 12
3(6 - 5x) = -14x -2(1 + 2x) + 2
x = -6
Jeff has 6 less dimes than nickels and half as many quarters as dimes. The value of Jeff's money is $4.15. How many of each kind of coin does he have?
20 nickels
14 dimes
7 quarters