SOLUTION: solve: 7x + 12 = 3x - 4 solve: 6(a - 5) = 4(a + 1) solve: 4(x + 3) = 12 solve: n divided by 5 + 10 = 0 solve: 3x - 7 = 4x + 5

Algebra ->  Linear-equations -> SOLUTION: solve: 7x + 12 = 3x - 4 solve: 6(a - 5) = 4(a + 1) solve: 4(x + 3) = 12 solve: n divided by 5 + 10 = 0 solve: 3x - 7 = 4x + 5      Log On


   

Question 49671This question is from textbook
: solve: 7x + 12 = 3x - 4
solve: 6(a - 5) = 4(a + 1)
solve: 4(x + 3) = 12
solve: n divided by 5 + 10 = 0
solve: 3x - 7 = 4x + 5 This question is from textbook

Answer by Juhi(44) About Me  (Show Source):
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7x + 12 = 3x - 4
7x - 3x = -4 -12
4x = -16
x = -16/4
= -4
6(a - 5) = 4(a + 1)
6a - 30 = 4a + 4
6a - 4a = 4 + 30
2a = 34
a = 34/2
= 17
4(x + 3) = 12
4x + 12 = 12
4x = 12 - 12
x = -4
n/5 + 10 = 0
n/5 = -10
n = -10*5
= -50
3x - 7 = 4x + 5
3x - 4x = 5 + 7
-x = 12
x = -12