Solve -(-7.8+9.2-7)+(-4+3.5-17) | Equatix - Math Solver

Fractions & Decimals

Ratios & Proportions

Basic Number Theory

Integers & Absolute Values

Factors & Multiples

Prime Factorization

Basic Equations & Inequalities

Coordinate Plane & Graphing

Linear Equations & Inequalities

Quadratic Equations

Polynomials & Factoring

Functions & Graphs

Systems of Equations

Trigonometric Functions

Trigonometric Identities & Equations

Right Triangle Trigonometry

Graphing Trigonometric Functions

Limits & Continuity

Derivatives & Applications

Integrals & Applications

Series & Sequences

Multivariable Calculus

Functions & Graphs

Polynomial & Rational Functions

Exponential & Logarithmic Functions

Sequences & Series

Descriptive Statistics

Normal Distribution

Hypothesis Testing

Regression Analysis

Linear Programming

Sets & Counting

Eigenvalues & Eigenvectors

Linear Transformations

Atomic Structure

Thermochemistry

Example

3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

a⋅(b-2)=3b

Question

$$-(-7.8+9.2-7)+(-4+3.5-17)$$

Evaluate

$-11.9$

Solution Steps

Add $-7.8$ and $9.2$ to get $1.4$.

$$-\left(1.4-7\right)-4+3.5-17$$

Subtract $7$ from $1.4$ to get $-5.6$.

$$-\left(-5.6\right)-4+3.5-17$$

The opposite of $-5.6$ is $5.6$.

$$5.6-4+3.5-17$$

Subtract $4$ from $5.6$ to get $1.6$.

$$1.6+3.5-17$$

Add $1.6$ and $3.5$ to get $5.1$.

$$5.1-17$$

Subtract $17$ from $5.1$ to get $-11.9$.

$$-11.9$$

Factor

$-11.9$