Question

Jonathan weighs thirty pounds more than three times his son Aidan's weight.Their combined weight is 210 pounds.Write an equation to find the weight of Aiden.How much does Aiden weigh?How much does Jonathan weigh?

Answer 1

The equation should be
j = 30 + 3a
j + a = 210

Solving the equation
j + a = 210
(30 + 3a) + a = 210
30 + 4a = 210
4a = 180
a = 45

j = 30 + 3a
j = 30 + 3 × 45
j = 30 + 135
j = 165

Aiden's weight is 45 pounds, Jonathan's weight is 165 pounds

Answer 2

At first, you have to make an equation to represent both of their weights together. A= Aiden's weight. 30+3A+A=210. You want to add like terms so that is comes out to 30+4A=210.
You want to subtract 30 from both sides; 4A=180
Divide 4 on both sides; A=45
Aiden weighs 45 pounds.
You have to multiply 45 by 3 and add 30; 165
165+45=210
Equation: 30+ 3A+A=210; 30+4A=210
Aiden: 45 pounds
Jonathan: 165 pounds