-4(z+3)-2(z-2) =? 6(x-4)+2(3+x)=?

1 ⤊

simplifying expressions
2 different equations

2007-02-05 10:19:03 · 3 answers · asked by mc.bubblez 1 in Science & Mathematics ➔ Mathematics

-4(z+3)-2(z-2)
= -4z - 12 - 2z + 4
= -6z - 8

6(x-4)+2(3+x)
= 6x - 24 + 6 + 2x
= 4x - 18

2007-02-05 10:22:28 · answer #1 · answered by Mathematica 7 · 0⤊ 0⤋

a) 4(z+3) = 4z+12; then:

-2(z-2) = -2z+4

so 4z+12-2z+4= 2z+16 or 2(z+8)

b) 6x-24+6+2X=8X-18 or 2(4x-9)

2007-02-05 18:30:07 · answer #2 · answered by mradigan747 2 · 0⤊ 0⤋

For the first, -4z-12-2z+4=-6z-8
For the second, 6x-24+6+2x=8x-18

2007-02-05 18:22:31 · answer #3 · answered by bruinfan 7 · 1⤊ 0⤋