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his score was increased... so if he is now at 67 and it was increased by 7 so his first grade would have been 60.
3x(2) + 2(2x - 20) = 16 - 2x(2)
6x + 4x - 40 = 16 - 4x
10x - 40 = 16 - 4x
14x - 40 = 16
14x = 56
x = 4
Hope this helps! ;)
Only one. 8
Divide by 6 on both sides. x = 8. That's it.
X=8
Here my
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