2006-10-02 10:25:21 · 10 answers · asked by brandywine614 1 in Science & Mathematics ➔ Mathematics
Set it up as a simple Algebra problem.
A +3A + 4 = 84
4A + 4 = 84
4A = 84-4
4A = 80
The two numbers are 20 and 64
A = 80/4
A = 20
Proof:
20 + (3X20) +4 = 84
20 + 60 + 4 - 84
84 = 84
See!
2006-10-02 10:39:39 · answer #1 · answered by Anonymous · 0⤊ 0⤋
I will help you get set up algebraically.
Let x be one number. Then the other number is 4 + 3x.
So, 84 = the sum of the numbers
84 = x + 4 + 3x
Now you do the rest!
2006-10-02 10:32:26 · answer #2 · answered by whatthe 3 · 1⤊ 0⤋
x + y = 84
y = 3x + 4
x + (3x + 4) = 84
x + 3x + 4 = 84
4x + 4 = 84
4(x + 1) = 84
x + 1 = 21
x = 20
y = 3(20) + 4 = 60 + 4 = 64
The numbers are 20 and 64
2006-10-02 12:34:28 · answer #3 · answered by Sherman81 6 · 0⤊ 0⤋
20 and 64
2006-10-02 10:33:58 · answer #4 · answered by Anonymous · 0⤊ 0⤋
20 and 64
2006-10-02 10:28:17 · answer #5 · answered by Typhoon_ 3 · 0⤊ 0⤋
20 and 64
2006-10-02 10:27:12 · answer #6 · answered by bflo73 1 · 0⤊ 0⤋
x+y=84
x=4+3y so 4+3y+y=84 so y=20 so x=64
2006-10-02 10:29:00 · answer #7 · answered by daniel_cohadier 3 · 0⤊ 0⤋
7/12
2006-10-02 10:50:03 · answer #8 · answered by DOX 1 · 0⤊ 0⤋
x + y = 80 4 3x + 4 = y resolve for x interior the 1st equation, then plug that fee in to the 2d equation. Then resolve the 2d equation for y, and plug it decrease back into the 1st equation, as a fashion to discover x.
2016-12-12 19:16:05 · answer #9 · answered by shery 4 · 0⤊ 0⤋
let the nembers are a and b;
a = 3b+4;
then a+b = (3b+4)+b = 84
4b + 4 =84
4b=80
b=20
a=3b+4=64
2006-10-02 10:29:48 · answer #10 · answered by Anonymous · 0⤊ 0⤋