Question

a) (-4)+x-(-8)+4=7 б) x-(-5)+4,7=-11

Answer 1

A) (-4)+x-(-8)+4=7
х+8=7
х=7-8
х=-1
б) x-(-5)+4,7=-11
х+5+4,7=-11
х+9,7=-11
х=-11-9,7
х=-20,7

Answer 2

Let's solve each equation step by step:

a) $(-4) + x - (-8) + 4 = 7$

Simplify the equation:

$-4 + x + 8 + 4 = 7$

$x + 8 + 4 = 7$

$x + 12 = 7$

Now, isolate $x$ by subtracting 12 from both sides:

$x = -5$

So, the solution to equation (a) is $x = -5$.

b) $x - (-5) + 4.7 = -11$

Simplify the equation:

$x + 5 + 4.7 = -11$

$x + 9.7 = -11$

Now, isolate $x$ by subtracting 9.7 from both sides:

$x = -20.7$

So, the solution to equation (b) is $x = -20.7$.