The variable is d, in the algebraic expression 7d+2
The variable is "d".
15d + 7 = 7d + 15 is an equation in one variable, d.
The coefficient would be the number multiplied by the variable, in this case: 7
8
The variable is d, in the algebraic expression 7d+2
The variable is "d".
15d + 7 = 7d + 15 is an equation in one variable, d.
The coefficient would be the number multiplied by the variable, in this case: 7
8
7d + 2 7 is the only coefficient
7d + 2 < 51 7d < 49 d < 7
2
7
2
7 is the coefficient of the variable d
5de+9e+7d+10e=5de+7d+19e