Solving Linear Equations
Solve for x.
x + 5 = 12
x = 7
What is the slope of the line:
y = 2x + 1
2
Solve for a
F = ma
a = F/m
Solve the system:
x + y = 6
x - y = 2
(4, 2)
If Sarah has 5 more apples than Tom, and Tom has 7 apples, how many does Sarah have?
12
Solve for x:
3x - 2 = 16
x = 6
What is the y-intercept of the line:
y = -3x + 4
4
Solve for p.
r = q + p
p = r - q
Solve the system:
2x = y
x + y = 9
(3, 6)
A taxi charges $3 plus $2 per mile. Write the equation for the total cost C for m miles.
C = 2m + 3
Solve for x :
2x - 4 = 14
x=9
What is the slope of the line:
2y = 6x - 8
3
Solve for V.
PV = nRT
V = (nRT)/P
Solve the system:
x + 2y = 7
2x - y = 4
(3, 2)
The sum of two numbers is 15. One is 3 more than the other. What are the numbers?
6 and 9
Solve for x:
5x + 2 = 3x + 10
x = 4
What is the slope of the line:
2x + y = 10
-2
Solve for x.
z = ywx
x = z/(yw)
Solve the system:
3x - 2y = 1
x + 4y = 5
(1, 1)
A rectangle has a perimeter of 24 units. Its length is 2 units more than its width. What are the dimensions?
5 units and 7 units
Solve for x:
4(x - 3) = 2x + 4
x = 8
What is the x-intercept of the line:
y = -2x + 6
3
Solve for x.
z = y - w + x
x = z - y + w
Solve the system:
x - y = 1
2x + 3y =7
(2, 1)
Two numbers have a sum of 20 and a difference of 4. What are the numbers?
12 and 8