Linear Equations
3x - 7 = 4 - 8x
x = 1
15x>75
x>5
Half a number increased by 5 is 7. What is the number?
x=4
A number decreased by 12
x−12
Seven less than 8 times a number is what written as what equation?
8x−7
2x + 3 + 3x = 17
x= 4
-4x <28
X> -7
Five times the difference of a number and 11 is 10. What is the number?
x=13
Twice a number increased by 8 is 20.
2x+8=20
2m + 23 < 31
m<4
7y + 2 = -2y + 20
y = 2
4a + 25> 9
a > -4
15 is 3 times a number decreased by 9. What is the number. What is the number?
x=−2
Five times a number increased by 8 is the same as 9 times the number decreased by 10.
5x+8=9x−10
4x - 10 = 5x + 7
x= -17
5 (x - 7) = 6
x=8.2
-12 < 5y-2 < 23
-2<y<5
7 times a number is the same as twice the sum of the number and 20. What is the number?
x=8
The quotient of a number and 9 decreased by 5 is 15.
x/9−5=15
Twice the difference of a number and 5 is the same as 7 more that 3 times the number. What is the equation?
2(x−5)=3x+7
2(y - 4) = 5y - 3
y=-1 2/3
4x-5 < 2(2x-3)
Infinite Solutions
Eight less than 6 times a number is the same 3 more than twice the number. What is the number?
x=2.75 or 2 and 3/4
9 more than the quotient of a number and 3
x/3+9
3(z+2) = 3z+2
No solution