Respuesta :
Answer:
x = 1.4 (or 21/15)
Step-by-step explanation:
12x - 15 = 6 - 3x
+3x +3x
-----------------------
15x - 15 = 6
+15 +15
-----------------------
15x = 21
/15 /15
----------------------
x = 21/15 or
x = 1.4
The value of x that makes the equation true is 7 / 5
The value of x that make the equation true can be calculated as follows:
12x-15=6-3x
add 3x to both sides
12x + 3x - 15 = 6 - 3x + 3x
15x - 15 = 6
add 15 to both sides
15x - 15 + 15 = 6 + 15
15x = 21
divide both sides by 15
x = 21 / 15
x = 7 / 5
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