Question

• 3. Resolver: 5a+16a-80= 17a+100-a 4. Resolver: 8- (-3x + 2) = -(-1 + 2x) + 15 • 5Resolver: 5(x+8) – 20 = -13 – 4(2x – 5) 6. Resolver: x + 5( -3 + x) = - 3(-x + 5)

Answer 1

3. 21a-80=16a+100
21a-16a=100+80
5a=180
a=36

4. 8-(-3x+2)=-(-1+2x)+15
8+3x-2 = 1-2x+15
6+3x = 16-2x
3x+2x=16-6
5x=10
X=2
5. 5(x+8) -20 = -13-4(2x-5)
5x+40-20 = -13-8x+20
5x+20 = 7-8x
5x+8x = 7-20
13x = -13
X =-1

6. x+5(-3+x) = -3(-x+5)
x-15+5x = 3x-15
x+5x = 3x
6x = 3x
6x-3x=0
3x = 0
x = 0