2.8+0.02(x+20)-4.8=-9

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Solution for 2.8+0.02(x+20)-4.8=-9 equation:


Simplifying
2.8 + 0.02(x + 20) + -4.8 = -9

Reorder the terms:
2.8 + 0.02(20 + x) + -4.8 = -9
2.8 + (20 * 0.02 + x * 0.02) + -4.8 = -9
2.8 + (0.4 + 0.02x) + -4.8 = -9

Reorder the terms:
2.8 + 0.4 + -4.8 + 0.02x = -9

Combine like terms: 2.8 + 0.4 = 3.2
3.2 + -4.8 + 0.02x = -9

Combine like terms: 3.2 + -4.8 = -1.6
-1.6 + 0.02x = -9

Solving
-1.6 + 0.02x = -9

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '1.6' to each side of the equation.
-1.6 + 1.6 + 0.02x = -9 + 1.6

Combine like terms: -1.6 + 1.6 = 0.0
0.0 + 0.02x = -9 + 1.6
0.02x = -9 + 1.6

Combine like terms: -9 + 1.6 = -7.4
0.02x = -7.4

Divide each side by '0.02'.
x = -370

Simplifying
x = -370

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