10(4a+5b)-7(7a+4b)=

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Solution for 10(4a+5b)-7(7a+4b)= equation:


Simplifying
10(4a + 5b) + -7(7a + 4b) = 0
(4a * 10 + 5b * 10) + -7(7a + 4b) = 0
(40a + 50b) + -7(7a + 4b) = 0
40a + 50b + (7a * -7 + 4b * -7) = 0
40a + 50b + (-49a + -28b) = 0

Reorder the terms:
40a + -49a + 50b + -28b = 0

Combine like terms: 40a + -49a = -9a
-9a + 50b + -28b = 0

Combine like terms: 50b + -28b = 22b
-9a + 22b = 0

Solving
-9a + 22b = 0

Solving for variable 'a'.

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

Add '-22b' to each side of the equation.
-9a + 22b + -22b = 0 + -22b

Combine like terms: 22b + -22b = 0
-9a + 0 = 0 + -22b
-9a = 0 + -22b
Remove the zero:
-9a = -22b

Divide each side by '-9'.
a = 2.444444444b

Simplifying
a = 2.444444444b

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