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abruzzese [7]
3 years ago
13

What is the value of ▲ in the equation shown? 7 x 9 = (7 x 10) - (7 x ▲) =_____

Mathematics
1 answer:
Svetradugi [14.3K]3 years ago
4 0
I'm changing the triangle to x to make it easier to look at.
63=70-7x<span>
subtract by 70 to get 7x by itself
-7= -7x
Divide by -7 to both sides to get x
</span><span>▲=1</span>
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