3(x-2) = x + 4 ...............given
3x - 6= x + 4 .................distributive property
2x - 6 = 4 ......................addition property of equality
2x = 10 .........................addition property of equality
x = 5 ..............................division property of equality
Answer:
Simplify 2(x+1)\times 22(x+1)×2 to 4(x+1)4(x+1).
4(x+1)=324(x+1)=32
2 Divide both sides by 44.
x+1=\frac{32}{4}x+1=
4
32
3 Simplify \frac{32}{4}
4
32
to 88.
x+1=8x+1=8
4 Subtract 11 from both sides.
x=8-1x=8−1
#2
2x - 4y = -2
2x + 3y = -16
------------------subtract
-7y = 14
y = 14/-7
y = -2
2x - 4y = -2
2x - 4(-2) = -2
2x + 8 = -2
2x = -2 -8
2x = -10
x = -10/2
x = -5
answer x = -2 and y = -5
check:
2(-5)- 4(-2) = -2
-10 +8 = -2
-2 = -2.....true
2x + 3y = -16
2(-5)+3(-2) = -16
-10 + (-6) = -16
-16 = -16...true
It's very important to use the symbol " ^ " here to denote exponentiation.
You probably meant "-10x^(-10), which would be "-10 times x to the minus tenth power."
If you want the value, you could do the following:
-10 1
------------------ = - ---------- = - 10^(-9).
10^10 10^9
