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Elanso [62]
3 years ago
13

What is the value of x?

Mathematics
2 answers:
Vinvika [58]3 years ago
8 0
Well first you have to set the two equal to each other
x+40=3x, then subtract x from both sides
40=2x, then divide both by two to get x alone
x=20
Svet_ta [14]3 years ago
6 0
They are vertically opposed angles.

They are equal!

So x+40 = 3x and we solve it -> x-3x = -40 -> -2x = -40 -> 2x=40 so x = 20
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