7q = 21
q = 3
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Look at it this way: If p = 1, then 7p = 7. What plus 7 equals -3? Adding 7 to -10 would equal -3, so all we have to figure out is what times 5 would equal -10. 5 times -2 would equal -10 so q equals -2.
Q) -3-(+7)=-3-7 =-10
9q - 14 + 3q - 8 = 7 So 9q + 3q = 7 + 14 + 8 ie 12q = 29 so q = 29/12 = 2.41666..
21-q
In algebra, "twice q" refers to the expression that represents two times the variable ( q ). Mathematically, it is written as ( 2q ). This indicates that whatever value ( q ) takes, it should be multiplied by 2. For example, if ( q = 3 ), then "twice q" would equal ( 6 ).