-2.5a+1.7=-0.9(7a-4)

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Solution for -2.5a+1.7=-0.9(7a-4) equation:


Simplifying
-2.5a + 1.7 = -0.9(7a + -4)

Reorder the terms:
1.7 + -2.5a = -0.9(7a + -4)

Reorder the terms:
1.7 + -2.5a = -0.9(-4 + 7a)
1.7 + -2.5a = (-4 * -0.9 + 7a * -0.9)
1.7 + -2.5a = (3.6 + -6.3a)

Solving
1.7 + -2.5a = 3.6 + -6.3a

Solving for variable 'a'.

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

Add '6.3a' to each side of the equation.
1.7 + -2.5a + 6.3a = 3.6 + -6.3a + 6.3a

Combine like terms: -2.5a + 6.3a = 3.8a
1.7 + 3.8a = 3.6 + -6.3a + 6.3a

Combine like terms: -6.3a + 6.3a = 0.0
1.7 + 3.8a = 3.6 + 0.0
1.7 + 3.8a = 3.6

Add '-1.7' to each side of the equation.
1.7 + -1.7 + 3.8a = 3.6 + -1.7

Combine like terms: 1.7 + -1.7 = 0.0
0.0 + 3.8a = 3.6 + -1.7
3.8a = 3.6 + -1.7

Combine like terms: 3.6 + -1.7 = 1.9
3.8a = 1.9

Divide each side by '3.8'.
a = 0.5

Simplifying
a = 0.5

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