Two Step Equations
70 = 19 - 3x
-17
12w - 28 = -63 + 7w
w = -7
There is $4000 in your bank account. You want to increase your savings to $5000. You plan to save $40 per week until you reach your goal. How long will it take you to reach your goal?
4000 + 40w = 5000
3n - 40 + 2n = 15
n = 11
During hibernation, a chipmunk's weight decreases by 0.31 pound and afterwards they weigh 0.35 pound. Write an equation and solve for the weight before hibernation.
weight = 0.66 pound
8 - (x/7) = -10
126
Is x = -9 a solution?
41 - 8x = -6x - 23
No, 113 does not equal 31
The perimeter os a triangle is 112 meters. Two of the side lengths are 56 meters and 31 meters. What is the length of the third side?
56 + 31 + s = 112
12 = 3( m - 17 )
m = 21
Which property would you use to solve 5x = 85?
Division property of equality
Translate and solve
The difference of fourteen and the product of three and a number is 26
14 - 3x = 26
x = -4
-15x = -5( 3x + 7 )
No solution
You buy a computer for $642. You make a down payment for half the cost and pay off the rest in three equal monthly payments. How much is each monthly payment?
321 + 3p = 642
-40 - ( 2y + 5 ) = -61
y = 8
-0.63 / 0.7
-0.9
Translate and solve
Negative sixteen added to the quotient of a number and two is thirty-five
-16 + (n/2) = 35
n = 102
11 - 4t = 3( -2t + 5 )
t = 2
You are rock climbing and descending a cliff at a rate of about nine feet per minute. The cliff is about 360 feet high. How long until you are halfway down the cliff?
360 - 9m = 180
-5 = 0.25( 4 + 20k ) - 8k
k = 2
You are reading a book that is 540 pages long, and you can read about 30 pages per hour. How long does it take for you to read the book?
18 hours
Is x = -2 a solution of the equation?
-6 = (x/2) - 7
If not, what is the correct solution?
No, x = 2
-6( 4x + 3 ) = 6( -4x - 3 )
All numbers
A group of four friends are playing golf. The total cost for a round of golf is $108. Each person in the group has the same coupon. The cost of the round with coupons is $76. How much is the coupon worth?
108 - 4c = 76
3( 2x - 7 ) + 8( 4 - x ) = 19
x = -4
Solve the equation for y.
3x + 6y = 12
y = 2 - 1/2x