Writing Expressions
Write an expression.
A number decreased by 12
x-12
Write an equation.
A number diminished by 5 is 12.
x-5=12
Solving Equations
Solve for x.
4x + 3 = 7
x=1
2(3x+1)=38
x=6
Write an expression.
Four times a number increased by 9
4x+9
Write an equation.
Twice a number increased by 8 is 20.
2x+8=20
Solving Equations
Solve for x.
2x - 5 = - 11
x=-3
3x+1+4x=-20
x=-3
Write an expression.
Seven less than 8 times a number
8x-7
Write an equation.
The quotient of a number and 9 decreased by 5 is 15.
x/9-5=15
Solving Equations
Solve for x.
2x - 5 = - 11
x=8
1/4(4x-8)=17
x=19
Write an expression.
9 more than the quotient of a number and 3
x/3+9
Write an equation.
Three-fourths of a number increased by 7 is -4.
3/4x+8=-4
Solve for v.
v/3 + 14 = 30
v=48
-2(4x-5)=66
x=-7