Matemática ayuda ecuasiones
a. ×=5×-13
b. 9×-4=2×
c. ×+5×=-10+3
d. 4×-5×-9-3×+4×
e. 3×-8×+9×=12-7×
a. ×=5×-13
b. 9×-4=2×
c. ×+5×=-10+3
d. 4×-5×-9-3×+4×
e. 3×-8×+9×=12-7×
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a. ×=5×-13
13 = 5x - x
13 = 4x
x = 13/4
b. 9×-4=2×
9x - 2x = 4
7x = 4
x = 4/7
c. ×+5×=-10+3
6x = -7
x = -7/6
d. 4×-5×-9-3×+4×
-x - 9 - 3x + 4x
-4x - 9 + 4x
-9
e. 3×-8×+9×=12-7×
-5x + 9x = 12 - 7x
4x = 12 - 7x
4x + 7x = 12
11x = 12
x = 12/11