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Diano4ka-milaya [45]
3 years ago
5

Help me with my math pls :)

Mathematics
1 answer:
MrMuchimi3 years ago
4 0

Answer:

4(x-8)=-32+4: x=1

2(x-2)=-3-2x: x1/4

3+5x=5(x+2)-7: x=0

8x+38=-3(-6-4x) x=5

Step-by-step explanation:

4(x-8)=-32+4

add subtract the numbers

-32+4=-28

4(x-8)=-28

Divide both sides by 4

\frac{4(x-8)}{4}=\frac{-28}{4}

Simplify

x-8=-7

Add 8 on both sides

x+8-8=-7+8

Simplify

x=1

2(x-2)=-3-2x

  • Expand 2(x-2)
  • apply distributive law: a(b-c)=ab-ac

a=2 b=x c=2

=2x-2·2

  • multiply the numbers

2·2=4

=2x-4

2x-4=-3x-2

  • Add 4 to both sides

2x-4+4=-3-2x+4

  • simplify

2x=-2x+1

  • Add 2x on both sides

2x+2x=2x+1+2x

  • Simplify

4x=1

  • Divide by 4 on both sides

4x÷4=1÷4

  • Simplify

x=1/4

3+5x=5(x+2)-7

<em> We move all terms to the left: </em>

<em> 3+5x-(5(x+2)-7)=0 </em>

<em> We calculate terms in parentheses: -(5(x+2)-7), so: </em>

<em> 5(x+2)-7 </em>

<em> We multiply parentheses </em>

<em>5x+10-7 </em>

<em> We add all the numbers together, and all the variables </em>

<em> 5x+3 </em>

<em> Back to the equation: </em>

<em> -(5x+3) </em>

<em>  We get rid of parentheses </em>

<em> 5x-5x-3+3=0 </em>

<em> We add all the numbers together, and all the variables </em>

<em> =0 </em>

<em> x=0/1 </em>

<em> x=0</em>

8x+38=-3(-6-4x)

Simplifying

8x + 38 = -3(-6 + -4x)

Reorder the terms:

38 + 8x = -3(-6 + -4x)

38 + 8x = (-6 * -3 + -4x * -3)

38 + 8x = (18 + 12x)

Solving

38 + 8x = 18 + 12x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-12x' to each side of the equation.

38 + 8x + -12x = 18 + 12x + -12x

Combine like terms: 8x + -12x = -4x

38 + -4x = 18 + 12x + -12x

Combine like terms: 12x + -12x = 0

38 + -4x = 18 + 0

38 + -4x = 18  

Add '-38' to each side of the equation.

38 + -38 + -4x = 18 + -38

Combine like terms: 38 + -38 = 0

0 + -4x = 18 + -38

-4x = 18 + -38

Combine like terms: 18 + -38 = -20

-4x = -20

Divide each side by '-4'.

x = 5

Simplifying

x = 5

Hope this helps

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