If x+y = 12 and x+y+z=17 and z=8 what does y equal

x+y = 12 and x+y+z=17 where z=8 solve for y = 5/8

Step-by-step explanation:

Solve the following system:

{x + y = 12 | (equation 1)

x + 9 y = 17 | (equation 2)

Subtract equation 1 from equation 2:

{x + y = 12 | (equation 1)

0 x+8 y = 5 | (equation 2)

Divide equation 2 by 8:

{x + y = 12 | (equation 1)

0 x+y = 5/8 | (equation 2)

Subtract equation 2 from equation 1:

{x+0 y = 91/8 | (equation 1)

0 x+y = 5/8 | (equation 2)

Collect results:

x = 91/8 , y = 5/8

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

savings account is an account only used for saving money. this acts as an emergency source of funding for an individual. answer a would result in the money in his account to grow as it specifically states that interest is compounded daily at the rate of 2%

step-by-step explanation: