3x/2 - 4x/5 =77, then x= ?where
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3
Answer:
110
Step-by-step explanation:
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7
Answer:
x = 110
Step-by-step explanation:
3x/2 - 4x/5 =77
first we take LCM of term in Denominators to Simplify the equation
2 & 5 are in Denominator
so LCM = 2 * 5 = 10 as there is no common factor
we will mutiply the whole equation by 10 ( LCM)
(3x/2)* 10 - (4x/5)*10 = 77 * 10
(10/2 = 5 & 10/5 = 2)
=> 3x * 5 - 4x * 2 = 770
(3 * 5 = 15 & 4 * 2 = 8)
=> 15x - 8x = 770
=> 7x = 770
=> 7x = 7 * 110
Dividing both sides by 7
=> x = 110
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