Solve the system by the addition method.
4x + 8y = 12
3x - 8y= 9
select the correct choice below and, if necessary, fill in the answer box within your choice.
a. the solution (type an ordered pair.)
b. there are infinitely many solutions.
c. there is no solution.

(3,0)

Step-by-step explanation:

4x+8y=`12(1)

3x-8y=9(2)

By adition method the y terms will cancel. +8y+-8y=0 hence

4x+3x=12+9

7x=21divide both sides by 7 to get x

7x/7=21/7

x=3substitute value of x in equation (1)

4x+8y=12

4(3)+8y=12

12+8y=12

8y=12-12

8y=0

y=0

solutions

x=3, y=0

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!

is it 35

step-by-step explanation: