There 7052 boys and adults at carnival. there are 756 fewer girls than adults. there is an equal number of girls and boys. how many children are there at the carnival.

1512

Step-by-step explanation:

The key is that there's an equal # of boys and girls, 756 each. Add the two together to get 1512

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18