2006-09-11 13:49:09 · 5 answers · asked by Anonymous in Education & Reference ➔ Homework Help
eqn 1:
4x - 9 -(-3x) = 8x - 1
4x - 9 + 3x = 8x - 1
7x - 9 = 8x - 1
-9 + 1 = 8x - 7x
-8 = x
eqn 2:
12(3 + y) = 5(2y + 8)
36 + 12y = 10y + 40
12y - 10y = 40 - 36
2y = 4
y = 2
2006-09-11 13:53:39 · answer #1 · answered by e.z p.z 2 · 0⤊ 0⤋
the belief is to isolate the variable 'x' to a minimum of one factor of the equation... 4x-(9-3x)=8x-a million 4x-9+3x = 8x-a million 7x-9 = 8x-a million -9=x-a million -8=x to income plug it back into the unique equation
2016-11-07 03:26:59 · answer #2 · answered by Anonymous · 0⤊ 0⤋
4x-9+3x=8x-1
7x-9=8x-1
-9+1=8x-7x
-8=x
36+12y=10y+40
12y-10y=40-36
2y=4
y=2
2006-09-11 13:54:07 · answer #3 · answered by Mariposa 7 · 1⤊ 0⤋
Hey
ezpz solved it correctly, if you want to learn, think about the equation and no matter right or wrong solve it then look at the answer. if you don't want to learn, then good luck copy the answer.
2006-09-11 13:59:11 · answer #4 · answered by P J 2 · 0⤊ 1⤋
OK THE FIRST ONE U GOTTA DO THE THING IN PARENTHESIS AND THEN U GOTTA DO THE MULTIPLICATION AND THEN THE ADDIN AND SUBTRACTING AND NUMBER2 IS Y=15
2006-09-11 13:54:25 · answer #5 · answered by Jason J 2 · 0⤊ 1⤋