math 6 B: variable expressions practict
Here are some practice problems for variable expressions in 6th grade math:
1) Evaluate the expression 3x + 7 when x = 4.
2) Simplify the expression 2y - 5 + y + 3y - 1.
3) Solve the equation 2x + 5 = 11.
4) Write an expression for "twice the sum of a number and 5".
5) Write an equation for "three more than twice a number is equal to 17".
6) Simplify the expression 4(x + 3) - 2(x - 1).
7) Solve the equation 3y - 8 = 5y + 4.
8) Write an expression for "the difference between twice a number and 10".
9) Write an equation for "the sum of twice a number and 8 is equal to 20".
10) Simplify the expression 2(a + 5b) - b.
Take your time to solve each problem and remember to substitute any given values for the variables before simplifying or solving.