-4/9(2x-4)=48
i am hopeless at math...
2007-09-26 09:31:20 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(-8/9)x+16/9=48
16-8x=432
-8x=416
x=-52
2007-09-26 09:36:36 · answer #1 · answered by Anonymous · 0⤊ 0⤋
-4/9(2x-4)=48 (first multiply through by 9 - this removes denominator from left hand side.
-4(2x - 4) = 432 (Next multiply out the brackets by '-4'. Noting that minus times a minus gives a plus answer).
-8x + 16 = 432 (Subtract '16' from both sides)
-8x = 432 - 16
-8x = 416 (Divide through by '-8').
x = -52 the answer!!!!!
2007-09-26 09:42:24 · answer #2 · answered by lenpol7 7 · 0⤊ 0⤋
Multiply both sides by nine.
-4(2x - 4) = 432
-8x + 16 = 432
-8x = 416
x = -52
2007-09-26 09:37:34 · answer #3 · answered by PMP 5 · 0⤊ 0⤋
-4/9(2x-4)=48
multiply both sides by -9/4
2x-4 = 48(-9/4)
2x-4 = -108
add 4 to both sides
2x = 4-108
2x = -104
divide both sides by 2
x = -52
2007-09-26 09:39:37 · answer #4 · answered by Brad B 2 · 0⤊ 0⤋