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Sagot :
Answer:
(x - 8) + (2x - 4) = 15
3x - 12 = 15
+12 +12
3x = 27
Divide by 3 on both sides:
x = 9
Answer:
x = 9
Step-by-step explanation:
➼first, let's put it into an equation
(x - 8) + (2x - 4) = 15
➼next, add up the common terms
-since there are two variables with x and two number variables, we will rewrite the equation and solve
(-8 - 4) + (2x + x) = 15
-8 - 4 = -12
2x + x = 3x
plug in:
-12 + 3x = 15
➼now get x alone by first getting rid of 12
-do this by doing opposite and adding 12 to everything
-12 + 12 = 0
12 + 15 = 27
plug in:
3x = 27
divide 3 both sides
27/3 = 9
3/3 = 0
➼x = 9
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