Answer:
Step-by-step explanation:
Simplifying
2.1x + -5.7 = 3.9(4.3 + -1.8x)
Reorder the terms:
-5.7 + 2.1x = 3.9(4.3 + -1.8x)
-5.7 + 2.1x = (4.3 * 3.9 + -1.8x * 3.9)
-5.7 + 2.1x = (16.77 + -7.02x)
Solving
-5.7 + 2.1x = 16.77 + -7.02x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '7.02x' to each side of the equation.
-5.7 + 2.1x + 7.02x = 16.77 + -7.02x + 7.02x
Combine like terms: 2.1x + 7.02x = 9.12x
-5.7 + 9.12x = 16.77 + -7.02x + 7.02x
Combine like terms: -7.02x + 7.02x = 0.00
-5.7 + 9.12x = 16.77 + 0.00
-5.7 + 9.12x = 16.77
Add '5.7' to each side of the equation.
-5.7 + 5.7 + 9.12x = 16.77 + 5.7
Combine like terms: -5.7 + 5.7 = 0.0
0.0 + 9.12x = 16.77 + 5.7
9.12x = 16.77 + 5.7
Combine like terms: 16.77 + 5.7 = 22.47
9.12x = 22.47
Divide each side by '9.12'.
x = 2.463815789
Simplifying
x = 2.463815789
