Asked by meghan

i keep getting stuck on the bottom of the question it's so confusing.
the question is 4a + -2 (1a + 9) = 6
i need help i
Answered by Ms. Sue
4a + -2 (1a + 9) = 6
4a - 2a - 18 = 6
2a = 24
a = ?

Answered by scott
P E M D A S

Parentheses ... there are some, but what's inside is already in simplest form

Exponents ... none

Multiplication ... the -2 is multiplied (distributed) over the (1a + 9)
... 4a + -2a - 18 = 6

Division ... none

Addition ... -2a is added to 4a
... 2a - 18 = 6

Subtraction ... 18 is subtracted from 2a ... unlike terms, so nothing happens

2a - 18 = 6 ... use algebra to solve for a
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