X*2+y*4=140

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Solution for X*2+y*4=140 equation: 



X*2+X*4=140

We move all terms to the left:

X*2+X*4-(140)=0

Wy multiply elements

2X+4X-140=0

We add all the numbers together, and all the variables

6X-140=0

We move all terms containing X to the left, all other terms to the right

6X=140

X=140/6

X=23+1/3

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