When x=______ The formula 5x + 6 minus 3x-2 equals 2!
5x-6-3x-2=2
5x-3x=2+6+2
2x=10
x=5
When x =? The expressions 3x + 1 and 4x + 7 are opposite to each other
-8 out of 7
When x=_______ The value of formula (5x + 1) / 2 is equal to that of formula 3x - 7
15