A). 4x - 7 = 1 + 2x
4x - 7 = 3x
7 = 3x + 4x
7 = 7x
7/7 = x = 1
B). 2m + 310 = 806
2m = 806 - 310
2m = 496
m = 496/2
m = 248
C). 3x - 102 = 285
3x = 285 + 102
3x = 387
x = 387/3
x = 129
D). 3y + 47 = 83 - y
3y + y = 83 - 47
4y = 36
y = 36/4
y = 9
espero haberte ayudado (≧◡≦) ¡¡
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Verified answer
A). 4x - 7 = 1 + 2x
4x - 7 = 3x
7 = 3x + 4x
7 = 7x
7/7 = x = 1
B). 2m + 310 = 806
2m = 806 - 310
2m = 496
m = 496/2
m = 248
C). 3x - 102 = 285
3x = 285 + 102
3x = 387
x = 387/3
x = 129
D). 3y + 47 = 83 - y
3y + y = 83 - 47
4y = 36
y = 36/4
y = 9
espero haberte ayudado (≧◡≦) ¡¡
TuProfesor17