(4.9*0.7)+(x*0.3)=4

Solution for (4.9*0.7)+(x*0.3)=4 equation:

Simplifying
(4.9 * 0.7) + (x * 0.3) = 4

Multiply 4.9 * 0.7
(3.43) + (x * 0.3) = 4
3.43 + (x * 0.3) = 4

Reorder the terms for easier multiplication:
3.43 + (0.3x) = 4

Solving
3.43 + (0.3x) = 4

Solving for variable 'x'.

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

Add '-3.43' to each side of the equation.
3.43 + -3.43 + (0.3x) = 4 + -3.43

Combine like terms: 3.43 + -3.43 = 0.00
0.00 + (0.3x) = 4 + -3.43
(0.3x) = 4 + -3.43

Combine like terms: 4 + -3.43 = 0.57
(0.3x) = 0.57

Divide each side by '0.3'.
x = 1.9

Simplifying
x = 1.9