Question

ayude por favor
1.4+7x= -12
2 . m-157= -657
3. 8x= -16
4. -3n+9= -21
5.4(x -2)= -4(3 - x) -5x
6.9( x+2) -3( x -5)
7.6(6 +x) - 4(2 x +8) = 45 -7x

Answer 1

1 4+7x= -12
7x = -12-4
7x= -16
x=-16/7

2 . m-157= -657
m = -657+157
m =-500

3. 8x= -16
x= -16/8
x=-2

4. -3n+9= -21
-3n =-21-9
-3n =-30
n =30/3
n=10

5. 4(x -2)= -4(3 - x) -5x
4 x -8 = -12+4x -5x
4x -4x +5x = -12+8
5x = -4
x= -4/5

6. No igualaste...

7. 6(6 +x) - 4(2 x +8) = 45 -7x
36+ 6x -8x -32 = 45-7x
6x -8x +7x = 45-36+32
5x = 41
x=41/5