1 answer:
-(-5 - 6x) = 4 (5x +3)
Pretend that there is a -1 in front of the first bracket
-1(-5-6x)= 4(5x+3)
Mutiply the first bracket by -1
(-1)(-5)(-1)(-6x)= 5+6x
Mutiply the second bracket by 4
(4)(5x)(4)(3)= 20x+12
5+6x= 20x+12
move 20x to the other side
5+6x-20x= 20x-20x+12
5+6x-20x= 12
5-14x= 12
move 5 to the other side
sign changes from +5 to -5.
5-5-14x= 12-5
-14x=7
divide by -14
-14x/-14= 7/-14
x= -1/2
Answer: x= -1/2
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Answer:
Step-by-step explanation:
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Answer:
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Step-by-step explanation:
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FOIL
first = x*2x = 2x^2
outer = x*-4 = -4x
inner = 3 * 2x = 6x
last = 3 * (-4) = -12
add together
2x^2 -4x+6x-12
2x^2 +2x-12
