Question

ayuda a responder estas ecuaciones 5x+1=3x-4 7x-3=9x+5 5a-1=14 5x-9=3(x-2) 4a-8=-4(2x-3)+4​

Answer 1

5x+1=3x-4

5x-3x=-4-1

2x=-5

x=-5÷2

x=2.5

7x-3=9x+5

7x-9x=5+3

-2x=8

x=8÷(-2)

x=-4

5a-1=14

5a=14+1

5a=15

a=15÷5

a=3

5x-9=3(x-2)

5x-9=3x-6

5x-3x=-6+9

2x=3

x=3÷2

x=1.5

4a-8=-4(2x-3)+4

4a-8=-8x+12+4

4a=-8x+16+8

4a=-8x+24

a=(-8x+24)÷4

a=-2x+6

• 4a-8=-4(2x-3)+4
• 4a-8=-8x+12+4
• 4a-8-12-4=-8x
• 4a-24=-8x
• (4a-24)÷-8=x
• x=-0.5-3