Simply the expression.
-1 - (-3x + 2) - 7x + 8
-1 - (-3x + 2) - 7x + 8
-1 -2 + 8 + 3x - 7x
5 - 4x
what is 2 digit number which is 9 times the sums of its digit?
Mary earns $8 per hour.Write an algebraic expression to evaluate how much money Mary will earn if she works for 15,20,25,or 30 hours.
To simplify the expression -1 - (-3x + 2) - 7x + 8, we will proceed with the following steps:
Step 1: Distribute the negative sign across the parentheses (-3x + 2):
-1 - (-3x + 2) - 7x + 8 = -1 + 3x - 2 - 7x + 8
Step 2: Combine like terms. Terms with the same variable and exponent can be combined:
(-1 + 8) + (3x - 7x) + (-2) = 7 + (-4x) + (-2)
Step 3: Combine the numerical terms:
7 + (-4x) + (-2) = 7 - 4x - 2
Step 4: Simplify further by combining like terms:
7 - 4x - 2 = 5 - 4x
Therefore, the simplified expression is 5 - 4x.